Genesis 3:24 in the King James Version
So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.
Context
23 Therefore the LORD God sent him out from the garden of Eden, to till the ground from which he was taken.
24 So he drove out the man; and he placed cherubim at the east of the garden of Eden, and a flaming sword which turned every way, to guard the way to the tree of life.