Oh that men would praise - See the notes at Psalm 107:8. The idea here is that the things just referred to "should" call forth expressions of gratitude to God. The immediate reference is to those who had partaken of these proofs of the divine goodness, but still the language is so general as to be applicable to all classes of people.

O that men, etc. - This is the intercalary verse, or burden, of the second part, as it was of the first. See Psalm 107:8.

O that men would praise the Lord for his goodness,.... Or, "confess to the Lord his goodness or grace", or "mercy" (g); own and acknowledge it, in delivering them from such a state of darkness and death, of thraldom and captivity; see Romans 6:17.
And for his wonderful works to the children of men! or, "confess" them before them; relate and declare them to them, what wonderful things he has done for them; that they may be affected with them, and that they may praise his name together; See Gill on Psalm 107:9.
(g) So Pagninus, Montanus, Cocceius, Michaelis.