Verse-by-Verse Bible Commentary
Psalms 21:1

Clarke's Commentary

PSALM XXI

The psalmist returns thanks to God for giving him the victory

over his enemies; which victory he had earnestly requested,

1, 2.

He enters into a detail of the blessings that in consequent of

the victory he had obtained, 3-7.

He predicts the destruction of all those who may hereafter rise

up against him, 8-12;

and concludes with praising the power of Jehovah, 13.

NOTES ON PSALM XXI

In the title of this Psalm there is nothing particularly worthy of remark. The occasion of it is variously understood. Some think it was composed to celebrate the victory obtained over Sennacherib; others, that it was made on the recovery of Hezekiah, and the grant of fifteen years of longer life; see Psalms 21:4. Others and they with most appearance of propriety consider it a song of rejoicing composed by David for his victory over the Ammonites, which ended in the capture of the royal city of Rabbah, the crown of whose king David put on his own head, see Psalms 21:3, and to procure which victory David offered the prayers and sacrifices mentioned in the preceding Psalm. Lastly, many think that it is to be wholly referred to the victories of the Messiah; and it must be owned that there are several expressions in it which apply better to our Lord than to David, or to any other person; and to him the Targum applies it, as does likewise my old Anglo-Scottish Psalter in paraphrasing the text.

Verse Psalms 21:1. The king shall joy — מלך משיחא melech Meshicha, "the King Messiah." - Targum. What a difference between ancient and modern heroes! The former acknowledged all to be of God, because they took care to have their quarrel rightly founded; the latter sing a Te Deum, pro forma, because they well know that their battle is not of the Lord. Their own vicious conduct sufficiently proves that they looked no higher than the arm of human strength. God suffers such for a time, but in the end he confounds and brings them to naught.

Bridgeway Bible Commentary

Psalms 20-21 Before and after battle

These two psalms belong together as a pair. The former is a prayer for the king before he leads the people in battle; the latter, a thanksgiving after victory.
Addressing the king, the people call down God’s power and protection upon him (20:1-2). They pray that God will remember the king’s faithfulness and give him victory (3-5). The king replies that victory is certain, because he has God’s help. God’s power is greater than military might (6-8). In response, the people offer a further plea, brief and urgent, for God’s help (9).

The people join in thanksgiving to God that he has answered their prayer of the previous psalms (see Psalms 20:4). God has given the king his heart’s desire, enabling him to lead his people to victory (21:1-4). Although the king receives glory because of his victory, the glory is not self-centred. It is glory given him by God, in whom he trusts (5-7). Having offered thanks to God, the people turn and address the king. They assure him that through God’s power he will continue to have victory over all his enemies (8-12). King and people then unite in praise to God (13).

Coffman's Commentaries on the Bible

“The king shall joy in thy strength, O Jehovah; And in thy salvation how greatly shall he rejoice! Thou has given him his heart’s desire, And thou hast not witholden the request of his lips, (Selah)”

The king spoken of here cannot be identified with any earthly monarch. The “king” here is the Messiah.

He is not merely a king, but The King; king over minds and hearts, reigning with a dominion of love before which all other rule is merely brute force. He was proclaimed King even upon the Cross, for there indeed in the eyes of faith, He reigned as on a throne, blessing with far more than imperial munificence the needy sons of earth.Charles Haddon Spurgeon, p. 95.

Barnes' Notes on the Whole Bible

The king shall joy in thy strength - King David, who had achieved the victory which he had desired and prayed for, Psalms 20:1-9. This is in the third person, but the reference is doubtless to David himself, and is to be understood as his own language. If it be understood, however, as the language of “the people,” it is still an ascription of praise to God for his favor to their king. It seems better, however, to regard it as the language of David himself. The word ““strength”” here implies that all the success referred to was to be traced to God. It was not by the prowess of a human arm; it was not by the valor or skill of the king himself; it was by the power of God alone.

And in thy salvation - In the salvation or deliverance from foes which thou hast granted, and in all that thou doest to save. The language would embrace all that God does to save his people.

How greatly shall he rejoice! - Not only does he rejoice now, but he ever will rejoice. It will be to him a constant joy. Salvation, now to us a source of comfort, will always be such; and when we once have evidence that God has interposed to save us, it is accompanied with the confident anticipation that this will continue to be the source of our highest joy forever.

Calvin's Commentary on the Bible

1.The king will rejoice in thy strength, O Jehovah! David could have given thanks to God in private for the victories and other signal favors which he had received from him; but it was his intention to testify not only that it was God who elevated him to the throne, but also that whatever blessings God had conferred upon him redounded to the public good, and the advantage of all the faithful. In the beginning of the psalm the believing Israelites express their firm persuasion that God, who had created David to be king, had undertaken to defend and maintain him. It therefore appears that this psalm, as well as the preceding, was composed for the purpose of assuring the faithful that the goodness of God in this respect towards David would be of long duration, and permanent; and it was necessary, in order to their being established in a well-grounded confidence of their safety; to hope well of their king, whose countenance was as it were a mirror of the merciful and reconciled countenance of God. The sense of the words is: Lord, in putting forth thy power to sustain and protect the king, thou wilt preserve him safe; and, ascribing his safety to thy power, he will greatly rejoice in thee. The Psalmist has doubtless put strength and salvation for strong and powerful succor; intimating, that the power of God in defending the king would be such as would preserve and protect him against all dangers.

In the second verse there is pointed out the cause of this joy. The cause was this: that God had heard the prayers of the king, and had liberally granted him whatever he desired. It was important to be known, and that the faithful should have it deeply impressed on their minds, that all David’s successes were so many benefits conferred upon him by God, and at the same time testimonies of his lawful calling. And David, there is no doubt, in speaking thus, testifies that he did not give loose reins to the desires of the flesh, and follow the mere impulse of his appetites like worldly men, who set their minds at one time upon this thing, and at another time upon that, without any consideration, and just as they are led by their sensual lusts; but that he had so bridled his affections as to desire nothing save what was good and lawful. According to the infirmity which is natural to men, he was, it is true, chargeable with some vices, and even fell shamefully on two occasions; but the habitual administration of his kingdom was such that it was easy to see that the Holy Spirit presided over it. But as by the Spirit of prophecy the Psalmist had principally an eye to Christ, who does not reign for his own advantage, but for ours, and whose desire is directed only to our salvation, we may gather hence the very profitable doctrine, that we need entertain no apprehension that God will reject our prayers in behalf of the church, since our heavenly King has gone before us in making intercession for her, so that in praying for her we are only endeavoring to follow his example.

Smith's Bible Commentary

Psalms 21:1-13

Again, to the chief musician, the psalm of David.

The king shall joy in thy strength, O LORD; and in thy salvation how greatly shall he rejoice! Thou hast given him his heart's desire, and you have not withheld the requests of his lips ( Psalms 21:1-2 ).

Now the Selah indicates, really, sort of a change of thought. It sort of introduces a new idea. It is just sort of a rest, and then introducing of a new idea, new thought pattern.

For you prevent him with the blessings of goodness: you set a crown of pure gold on his head. He asks for life from thee, and you gave it to him, even the length of days for ever and ever. His glory is great in thy salvation ( Psalms 21:3-5 ):

He is talking about the king's delight in the Lord, and how he was just so gracious for what God has done.

For thou hast made him most blessed for ever: thou hast made him exceeding glad with thy countenance. For the king trusts in the LORD, and through the mercy of the Most High he shall not be moved. Your hand shall find out all your enemies: your right hand shall find out those that hate thee. You will make them as a fiery oven in the time of thine anger: the LORD will swallow them up in his wrath, and the fire shall devour them. Their fruit will you destroy from the earth, and their seed from among the children of men. For they intended evil against thee: they imagined mischievous devices, that they are not able to perform. Therefore thou shalt make them to turn their back, when thou shalt make ready your arrows upon thy strings against the face of them. Be thou exalted, LORD, in your own strength: so will we sing of thy praise and thy power ( Psalms 21:5-13 ). "

Dr. Constable's Expository Notes

Speaking of himself in the third person, King David gave thanks to God for giving him victory over another king and his kingdom. He acknowledged that it was the Lord’s strength, not his own, that had brought him salvation in the battle. God had given David victory as a gift. The crown (Psalms 21:3) may refer to the literal crown of his enemy that victorious kings appropriated for themselves in David’s time. Metaphorically it could refer to a fresh coronation that David believed he had received from the Lord by granting him this victory. David’s life was safe, and much glory and joy had come to him as a result of the victory.

Dr. Constable's Expository Notes

1. Joy in God’s strength 21:1-7

Dr. Constable's Expository Notes

Psalms 21

This royal psalm of thanksgiving is a companion to the preceding one in that it records David’s thanksgiving for the victory that he anticipated in Psalms 20.

Gill's Exposition of the Whole Bible

The king shall joy in thy strength, O Lord,.... Either in that strength which is in Jehovah himself, in whom is everlasting strength; and which is seen in the works of creation and providence, and is the same in Christ himself, as he is the mighty God; or else in the strength which Jehovah communicated to Christ as man, whereby he was strengthened in his human nature to go through and complete the work of man's redemption; or in the strength which the Lord puts forth, and the power which he exerts towards and upon his people, in conversion; which is the produce of the exceeding greatness of his power; and in strengthening them, from time to time, to exercise grace, discharge duty, and withstand temptations and sin; and in keeping them safe to the end; in supporting them under all their trials, and in carrying on and finishing the work of faith upon their souls; all which is matter of joy to Christ;

and in thy salvation how greatly shall he rejoice? meaning either his own salvation by the Lord, from all his sorrows and troubles, and out of the hands of all enemies, being in the presence of God, where is fulness of joy, Psalms 16:9; or else the salvation of his people by him, which Jehovah appointed them to, secured for them in the covenant of grace, sent Christ to work out for them, applies by his Spirit, and at last puts into the full possession of: Christ rejoices at the effectual calling and conversion of his people, when salvation is brought near unto them; and especially at their glorification, when they shall be in the full enjoyment of it; then will they be his joy, and crown of rejoicing: this is the joy that was set before him, which made him go so cheerfully through his sufferings and death for them,

Hebrews 12:2; the reasons of this joy are, because of the great love he bears to them; the interest and property he has in them; his undertakings for them, as their surety, to bring them safe to glory; his purchase of them by his blood; his intercession for them, that they might be with him to behold his glory; and, last of all, because of his Father's glory, his own glory, and the glory of the blessed Spirit, which are concerned in the salvation of these persons.

Henry's Complete Commentary on the Bible

To the chief musician. A psalm of David.

      1 The king shall joy in thy strength, O LORD; and in thy salvation how greatly shall he rejoice!   2 Thou hast given him his heart's desire, and hast not withholden the request of his lips. Selah.   3 For thou preventest him with the blessings of goodness: thou settest a crown of pure gold on his head.   4 He asked life of thee, and thou gavest it him, even length of days for ever and ever.   5 His glory is great in thy salvation: honour and majesty hast thou laid upon him.   6 For thou hast made him most blessed for ever: thou hast made him exceeding glad with thy countenance.

      David here speaks for himself in the first place, professing that his joy was in God's strength and in his salvation, and not in the strength or success of his armies. He also directs his subjects herein to rejoice with him, and to give God all the glory of the victories he had obtained; and all with an eye to Christ, of whose triumphs over the powers of darkness David's victories were but shadows. 1. They here congratulate the king on his joys and concur with him in them (Psalms 21:1; Psalms 21:1): "The king rejoices, he uses to rejoice in thy strength, and so do we; what pleases the king pleases us," 2 Samuel 3:36. Happy the people the character of whose king it is that he makes God's strength his confidence and God's salvation his joy, that is pleased with all the advancements of God's kingdom and trusts God to bear him out in all he does for the service of it. Our Lord Jesus, in his great undertaking, relied upon help from heaven, and pleased himself with the prospect of that great salvation which he was thereby to work out. 2. They gave God all the praise of those things which were the matter of their king's rejoicing. (1.) That God had heard his prayers (Psalms 21:2; Psalms 21:2): Thou hast given him his heart's desire (and there is no prayer accepted but what is the heart's desire), the very thing they begged of God for him, Psalms 20:4. Note, God's gracious returns of prayer do, in a special manner, require our humble returns of praise. When God gives to Christ the heathen for his inheritance, gives him to see his seed, and accepts his intercession for all believers, he give him his heart's desire. (2.) That God had surprised him with favours, and much outdone his expectations (Psalms 21:3; Psalms 21:3): Thou preventest him with the blessings of goodness. All our blessings are blessings of goodness, and are owing, not at all to any merit of ours, but purely and only to God's goodness. But the psalmist here reckons it in a special manner obliging that these blessings were given in a preventing way; this fixed his eye, enlarged his soul, and endeared his God, as one expresses it. When God's blessings come sooner and prove richer than we imagine, when they are given before we prayed for them, before we were ready for them, nay, when we feared the contrary, then it may be truly said that he prevented us with them. Nothing indeed prevented Christ, but to mankind never was any favour more preventing than our redemption by Christ and all the blessed fruits of his mediation. (3.) That God had advanced him to the highest honour and the most extensive power: "Thou hast set a crown of pure gold upon his head and kept it there, when his enemies attempted to throw it off." Note, Crowns are at God's disposal; no head wears them but God sets them there, whether in judgment to his land or for mercy the event will show. On the head of Christ God never set a crown of gold, but of thorns first, and then of glory. (4.) That God had assured him of the perpetuity of his kingdom, and therein had done more for him than he was able either to ask or think (Psalms 21:4; Psalms 21:4): "When he went forth upon a perilous expedition he asked his life of thee, which he then put into his hand, and thou not only gavest him that, but withal gavest him length of days for ever and ever, didst not only prolong his life far beyond his expectation, but didst assure him of a blessed immortality in a future state and of the continuance of his kingdom in the Messiah that should come of his loins." See how God's grants often exceed our petitions and hopes, and infer thence how rich he is in mercy to those that call upon him. See also and rejoice in the length of the days of Christ's kingdom. He was dead, indeed, that we might live through him; but he is alive, and lives for evermore, and of the increase of his government and peace there shall be no end; and because he thus lives we shall thus live also. (5.) That God had advanced him to the highest honour and dignity (Psalms 21:5; Psalms 21:5): "His glory is great, far transcending that of all the neighbouring princes, in the salvation thou hast wrought for him and by him." The glory which every good man is ambitious of is to see the salvation of the Lord. Honour and majesty hast thou laid upon him, as a burden which he must bear, as a charge which he must account for. Jesus Christ received from God the Father honour and glory (2 Peter 1:17), the glory which he had with him before the worlds were, John 17:5. And on him is laid the charge of universal government and to him all power in heaven and earth is committed. (6.) That God had given him the satisfaction of being the channel of all bliss to mankind (Psalms 21:6; Psalms 21:6): "Thou hast set him to be blessings for ever" (so the margin reads it), "thou hast made him to be a universal blessing to the world, in whom the families of the earth are, and shall be blessed; and so thou hast made him exceedingly glad with the countenance thou hast given to his undertaking and to him in the prosecution of it." See how the spirit of prophecy gradually rises here to that which is peculiar to Christ, for none besides is blessed for ever, much less a blessing for ever to that eminency that the expression denotes: and of him it is said that God made him full of joy with his countenance.

      In singing this we should rejoice in his joy and triumph in his exaltation.