Psalm 118:1
O give thanks unto the Lord; for he is good: because his mercy endureth for ever.
Cross-reference
In Psalm 118:29, the same refrain from verse 1 is repeated as the closing doxology, reinforcing the theme of God's enduring steadfast love.
In Psalm 103:17, the same truth of God's everlasting steadfast love is affirmed, echoing the refrain of Psalm 118:1.
In Psalm 106:1, the identical call to give thanks for God's enduring steadfast love appears, forming a repeated liturgical refrain.
Psalm 107:1 repeats this exact verse — the same call to give thanks for God's enduring love.
Psalm 136:1 opens with the identical refrain, forming a refrain throughout that psalm.
Psalm 100:5 declares 'the LORD is good; his steadfast love endures forever' — the same reason for thanks.
1 Chronicles 16:34 quotes this exact verse as part of David's psalm of thanks.
Jeremiah 33:11 quotes this phrase as the joyful song of restored Israel — a direct citation in prophecy.