Charles Ellicott Commentary Psalms 107:8

"Oh that men would praise Jehovah for his lovingkindness, And for his wonderful works to the children of men!" — Psalms 107:8 (ASV)

Oh that men. —The subject is, rather, to be supplied from the preceding clauses, “let them praise,” etc. Some, however, translate “they praise,” etc.

On the other hand, the insertion of “for” in each clause of the Authorised Version is correct (so Septuagint and Vulgate).