That I may make men to hear, etc In these words, he shows that he referred the sacrifices to their proper use and design, which hypocrites were far from doing. They neither know, nor do they consider, for what purpose God appointed the services of worship, but think it sufficient to thrust themselves into the divine presence with the pomp and form of their dissimulation. David, therefore, wishing to distinguish spiritual worship from that which is fictitious and counterfeit, affirms that he came into the sanctuary to set forth the praise of God's name. There is, however, a synecdoche in his words, as only one kind of worship is mentioned, although, in offering the sacrifices, the exercise of repentance and faith was required, as well as the giving of thanks. But as the ultimate design of the sacrifices, or at least their principal object was to celebrate the goodness of God in thus acknowledging his blessings, there was no impropriety in comprehending the other parts of worship under this. Thus, in Psalm 50:14, the sacrifice of praise is preferred to all external ceremonies, as if the whole of devotion consisted in it alone. Likewise in Psalm 116:12, it is said, "What shall I render unto the Lord for all his benefits? I will take the cup of salvation, and call upon the name of the Lord." Moreover, that he may the better commend the acknowledged power of God, and more impressively extol his benefits, David employs the phrase wondrous; as if he had said, that it was in no ordinary way that God had helped him.

That I may publish with the voice of thanksgiving - literally, "that I may cause to be heard;" that is, that I may make known to others. The idea is, that he would make known to others what he had learned from God; or that He would make known to them the delights of His service, and seek to win them to His worship. This he would do with a thankful remembrance of the favors which he had himself enjoyed, or as an expression of his gratitude for the mercies which had been conferred on him. As expressive of his gratitude to God, he would endeavor to win others also to His service.
And tell of all thy wondrous works - The wonderful things which thou hast done - thy works of creation, providence, and salvation. His own mind was deeply impressed with the greatness of God's works, and he would desire to make the divine actions known as far as possible in the world. Compare Psalm 22:22; Psalm 66:16; Psalm 145:5-6. This is always one of the evidences of true piety. They who have been impressed properly with a sense of the greatness and goodness of God; they who have experienced His pardoning mercy and forgiving grace, desire always to make these things known to others, and to invite them also to partake of the mercies connected with the divine favor. Compare John 1:45,

That I may publish - I have endeavoured to act so as always to keep a conscience void of offense towards thee and towards man. I have made a profession of faith in thee, and salvation from thee, and my practice gives no lie to my profession.

That I may publish with the voice of thanksgiving,.... Or "cause to hear with the voice of confession" (z): the meaning is, that the view of the psalmist, in compassing the altar of God in the manner he proposed, was not to offer upon it any slain beast; but to offer the sacrifices of praise upon that altar, which sanctifies the gift, and from whence they come with acceptance to God; even for all mercies, both temporal and spiritual, and that with a confession and acknowledgment of sin and unworthiness; all this is agreeable to the will of God; it is well pleasing in his sight, what glorifies him, and is but our reasonable service;
and tell of all thy wondrous works; of creation and providence; and especially of grace and redemption; this is the business of saints in God's house below, and will be their employment in heaven to all eternity. Jarchi on the place says, that this song of praise has in it what relates to future times, to Gog, to the days of the Messiah, and to the world to come.
(z) "voce confessionis", Montanus, Cocceius, Gejerus, Michaelis; so Ainsworth.