The matter of this Psalm is the same with the former, only it is a little more fitted to the use and service of the temple, by the continued repetition of that solemn clause, For thy mercy endures for ever, which was much used by the sacred singers. See 2Ch_7:3 20:21.
The psalmist exhorteth all to praise God, for his power and wisdom in creating and governing the world, Psa_136:1-9; for delivering the Israelites out of Egypt, and bringing them to the Promised Land, Psa_136:10-26.