Genesis 3:22-24

22And the Lord God said, “Behold, the man has become like one of Us (Father, Son, Holy Spirit), knowing [how to distinguish between] good and evil; and now, he might stretch out his hand, and take from the tree of life as well, and eat [its fruit], and live [in this fallen, sinful condition] forever”—

23therefore the Lord God sent Adam away from the Garden of Eden, to till and cultivate the ground from which he was taken.

24So God drove the man out; and at the east of the Garden of Eden He [permanently] stationed the cherubim and the sword with the flashing blade which turned round and round [in every direction] to protect and guard the way (entrance, access) to the tree of life.