O give thanks unto the LORD; for he is good: for his mercy endureth for ever.
Psalms 136:1-26.-The repetition "for His mercy endureth forever" is the pervading idea. His mercy is not a mere think of the past, but endures to all times. Here and in Psalms 135:1-21 hope of deliverance for God's now depressed people is grounded on the Lord's infinite power displayed in nature, and in Israel's past history. Psalms 135:19-20 implies that all joined in the chorus closing each verse here, rather than sang in alternate parts.
O give thanks unto the Lord; for he is good: for his mercy endureth forever - "His mercy" specially to his people. He excels all, not merely in power, but also in goodness.