Psalms 136:2

O give thanks unto the God of gods: for his mercy endureth for ever.
— Psalms 136:2, King James Version

In other translations

World English Bible (WEB)

Give thanks to the God of gods; For his lovingkindness endures forever.

American Standard Version (ASV)

Oh give thanks unto the God of gods; For his lovingkindness endureth for ever.

Young's Literal Translation (YLT)

Give ye thanks to the God of gods, For to the age <FI>is<Fi> His kindness.