Thou hast given him his heart's desire - See the notes at Psalm 20:4. This had been the prayer of the people that God would "grant him according to his own heart, and fulfil all his counsel," and this desire had now been granted. All that had been wished; all that had been prayed for by himself or by the people, had been granted.

And hast not withholden - Hast not denied or refused.

The request of his lips - The request, or the desire which his lips had uttered. The meaning is, that his petitions had been filly granted.

Selah - See the notes at Psalm 3:2.

Thou hast given him his heart's desire - This seems to refer to the prayers offered in the preceding Psalm; see especially Psalm 21:1-4.

Thou hast given him his heart's desire,.... Which the church had prayed for in Psalm 20:4; whatever Christ's heart desired, or his lips requested, has been given him;

and hast not withholden the request of his lips. Whatever he asked in the council and covenant of peace was granted; he asked for all the elect, as his spouse and bride; these were the desire of his heart and eyes, and they were given him; he asked for all the blessings of grace for them, and all grace was given to them in him; he asked for glory, for eternal life, and it was promised him; and not only the promise of it was put into his hand, but the thing itself; see Psalm 2:8, 1 John 5:11; and Psalm 20:4; whatever he requested of his Father, when here on earth, was granted; he always heard him; that memorable prayer of his in John 17:1 is heard and answered, both in what respects himself, his own glorification, and the conversion, sanctification, union, preservation, and glorification of his people; whatever he now desires and requests in heaven, as the advocate and intercessor for his saints, is ever fulfilled; which is an instance of the great regard Jehovah has unto him, and may be considered as a reason of his joy in him.

Selah; on this word; see Gill on Psalm 3:2.

Thou hast given him his heart's desire, and hast not withholden the request of his lips. Selah.

2. The sentiment affirmed in the first clause is reaffirmed by the negation of its opposite in the second.

21:1-6 Happy the people whose king makes God's strength his confidence, and God's salvation his joy; who is pleased with all the advancements of God kingdom, and trusts God to support him in all he does for the service of it. All our blessings are blessings of goodness, and are owing, not to any merit of ours, but only to God's goodness. But 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, or went before us, with them. Nothing indeed prevented, or went before Christ, but to mankind never was any favour more preventing than our redemption by Christ. Thou hast made him to be a universal, everlasting blessing to the world, in whom the families of the earth are, and shall be blessed; and so thou hast made him exceeding glad with the countenance thou hast given to his undertaking, and to him in the prosecution of it. The Spirit of prophecy rises from what related to the king, to that which is peculiar to Christ; none other is blessed for ever, much less a blessing for ever.