Rejoice in the Lord - It is very likely that the last verse of the preceding Psalm was formerly the first verse of this. As this Psalm has no title, the verse was the more easily separated. In the preceding Psalm we have an account of the happiness of the justified man: in this, such are taught how to glorify God, and to praise him for the great things he had done for them.
Praise is comely for the upright - It is right they should give thanks to Him, who is the fountain whence they have received all the good they possess and thankfulness becomes the lips of the upright.
Rejoice in the Lord, O ye righteous - This is the sentiment with which the preceding psalm closes. See the notes at Psalm 32:11.
For praise is comely for the upright - Is befitting, suitable, proper. That is, the upright - the righteous - have abundant cause for praise, and it is for them a suitable employment, or one which becomes them. A man who is upright, or who is a righteous man, has in this very fact much which lays a foundation for praise, for the fact that he has such a character is to be traced to the grace of God, and this in itself is a more valuable possession than gold or kingly crowns would he. That he is not an open violator of the law of God; that he is not intemperate; that he is not the victim of raging lusts and passions; that he is not a dishonest man; that he is not profane; that he is not an infidel or a scoffer; that he is a pious man - a redeemed man - a man of good character - an heir of heaven - is the highest blessing that could be conferred on him; and he who has been saved from outbreaking transgression and crime in a world like this, and has been enabled to live an upright life, has eminently occasion to praise and bless God. Assuredly for such a man praise is an appropriate employment, for such a man it is “comely.”