What does Ephesians 2:8-9 say?

Ephesians 2:8-9 in the King James Version reads:

⁸ For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: ⁹ Not of works, lest any man should boast.

These verses appear in Ephesians 2, in a passage describing salvation as a gift of God rather than a result of works. Read it in context at Ephesians 2:8-9, or the full chapter at Ephesians 2.