God to be praised for his mercy. (1-4) For his power and judgments. (5-14) The vanity of idols. (15-21)
Verses 1-4 The subject-matter of praise, is the blessings of grace flowing from the everlasting love of God. The name of God as a covenant God and Father in Christ, blessing us with all spiritual blessings in him, is to be loved and praised. The Lord chose a people to himself, that they might be unto him for a name and a praise. If they do not praise him for this distinguishing favour, they are the most unworthy and ungrateful of all people.
Verses 5-14 God is, and will be always, the same to his church, a gracious, faithful, wonder-working God. And his church is, and will be, the same to him, a thankful, praising people: thus his name endures for ever. He will return in ways of mercy to them, and will delight to do them good.
Verses 15-21 These verses arm believers against idolatry and all false worship, by showing what sort of gods the heathen worshipped. And the more deplorable the condition of the Gentile nations that worship idols, the more are we to be thankful that we know better. Let us pity, and pray for, and seek to benefit benighted heathens and deluded sinners. Let us endeavour to glorify his name, and recommend his truth, not only with our lips, but by holy lives, copying the example of Christ's goodness and truth.
This psalm was written very probably by the same hand as the former. It begins in much the same manner; it has some likeness with Psalm 113 and 114. It begins and ends with "hallelujah"; and is throughout an exhortation of praise to God, on account of his name, nature, and perfections; and because of his works of creation, providence, and grace, many of which are enumerated. The Syriac interpreter says, there is an intimation in it of the conversion of the people of the Messiah unto the faith.