Psalms 136:1

The duty we are here again and again called to is to give thanks, to offer the sacrifice of praise continually, not the fruits of our ground or cattle, but the fruit of our lips, giving thanks to his name, Heb 13:15. We are never so earnestly called upon to pray and repent as to give thanks; for it is the will of God that we should abound most in the most pleasant exercises of religion, in that which is the work of heaven. Now here observe, 1. Whom we must give thanks to - to him that we receive all good from, to the Lord, Jehovah, Israel's God (Psa 136:1), the God of gods, the God whom angels adore, from whom magistrates derive their power, and by whom all pretended deities are and shall be conquered (Psa 136:2), to the Lord of lords, the Sovereign of all sovereigns, the stay and supporter of all supports; Psa 136:3. In all our adorations we must have an eye to God's excellency as transcendent, and to his power and dominion as incontestably and uncontrollably supreme. 2. What we must give thanks for, not as the Pharisee that made all his thanksgivings terminate in his own praise (God, I thank thee, that I am so and so), but directing them all to God's glory. (1.

— Matthew Henry's Concise Commentary (public domain)