(13) Thou.--Again the song turns to address Jehovah.

So will we sing and praise.--Better, We will both with song and lyre celebrate Thy power.

Verse 13. - Be thou exalted, Lord, in thine own strength. The psalm, as already remarked, ends, as it began, with the praise of God. "Be thou exalted" means, "Be thou lifted up, both in thyself, and in the praises of thy people" (comp. Psalm 18:46; Psalm 46:10). So will we sing and praise thy power. We, at any rate, will do our part to exalt thee. Our tongues shall ever sing of the great deeds thou doest for us.

21:7-13 The psalmist teaches to look forward with faith, and hope, and prayer upon what God would further do. The success with which God blessed David, was a type of the total overthrow of all Christ's enemies. Those who might have had Christ to rule and save them, but rejected him and fought against him, shall find the remembrance of it a worm that dies not. God makes sinners willing by his grace, receives them to his favour, and delivers them from the wrath to come. May he exalt himself, by his all-powerful grace, in our hearts, destroying all the strong-holds of sin and Satan. How great should be our joy and praise to behold our Brother and Friend upon the throne, and for all the blessings we may expect from him! yet he delights in his exalted state, as enabling him to confer happiness and glory on poor sinners, who are taught to love and trust in him.Be thou exalted, Lord, in thine own strength,.... Exert thy strength, display thy power in such manner, that thou mayest be exalted and magnified on account of it. This was fulfilled at the destruction of Jerusalem, when the kingdom of God came with power, Mark 9:1; and will be again when Babylon shall be utterly destroyed, because the Lord is strong who judgeth her, Revelation 18:8; and finally at the day of judgment, when the wicked will be punished with everlasting destruction from the presence of the Lord, and the glory of his power, 2 Thessalonians 1:9;

so will we sing and praise thy power; forms of such songs of praise may be seen, as Cocceius observes, in Revelation 11:15; at the sounding of the seventh trumpet, at the victory over the beast, and his image, and at the destruction of Babylon.