Adam Clarke's Bible Commentary Verse 2. Thou hast given him his heart's desire ] This seems to refer to the prayers offered in the preceding Psalm; see especially ver. 1-4.
Matthew Henry Commentary
Verses 1-6 - Happy the people whose king makes God's strength his confidence, an 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 ar 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 tha he prevented, or went before us, with them. Nothing indeed prevented or went before Christ, but to mankind never was any favour mor preventing than our redemption by Christ. Thou hast made him to be universal, everlasting blessing to the world, in whom the families of the earth are, and shall be blessed; and so thou hast made his 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; non other is blessed for ever, much less a blessing for ever.
Original Hebrew תאות8378 לבו3820 נתתה5414 לו וארשׁת782 שׂפתיו8193 בל1077 מנעת4513 סלה׃5542