Psalm 136:1

This verse summons God's people to give thanks because He is good and His mercy lasts forever. It opens a psalm built on a repeated refrain -- "for his mercy endureth for ever" -- that returns after every line, like a congregation answering back in worship. The verse roots thanksgiving in two unchanging realities: God's goodness and His enduring mercy.

"He is good" is the first reason given -- thanks flows naturally from recognizing the character of the One we thank. God is not merely powerful or distant; He is good, and His goodness is the foundation of all His dealings. The second reason is His "mercy," a word rich with covenant loyalty and steadfast love, which "endureth for ever." This is love that does not run out, faithfulness that outlasts every season. The endless repetition through the psalm drives the point home: no matter what act of God is named -- creation, deliverance, provision -- the same mercy stands behind it, and it never ends. The verse teaches that gratitude is the fitting response to who God is, and that His mercy gives us reason to give thanks in every circumstance, since it never fails.