What does Psalms 118:1 say in the KJV?

O give thanks unto the LORD; for he is good: because his mercy endureth for ever.

King James Version (public domain)

Traditionally attributed to David · c. 10th century BC · King of Israel; author of many Psalms (compiled with other writers)

Context

1O give thanks unto the LORD; for he is good: because his mercy endureth for ever.

2Let Israel now say, that his mercy endureth for ever.

3Let the house of Aaron now say, that his mercy endureth for ever.