John Gill
INTRODUCTION TO Psalms 108 A Song [or] Psalm of David. This psalm consists of several passages out of the fifty seventh and sixtieth psalms, with very little variation. Jarchi and Kimchi refer it to the times of the Messiah. The title in the Syriac version is, "concerning the calling of the Gentiles,'' to which, no doubt, it has respect.
Matthew Henry
This psalm begins with praise and concludes with prayer, and faith is at work in both. I. David here gives thanks to God for mercies to himself, ver. 1-5. II. He prays to God for mercies for the land, pleading the promises of God and putting them in suit, ver. 6-13. The former part it taken out of Ps. lvii. 7, &c., the latter out of Ps. lx. 5, &c., and both with very little variation, to teach us...