Genesis 3:22-24

22The Lord God said, ‘The man has now become like one of us because he understands good and evil. So we must not let him take fruit from the tree that gives life. If he eats that fruit, he will live for ever.’

23So the Lord God sent Adam out of the Garden of Eden. To get his food, Adam had to dig the ground that God had used to make him.

24Then God put cherubs to be guards for the garden. God put them on the east side of the garden. There was also a sword of fire that moved quickly from side to side. As a result, nobody could go near to the tree that gives life.