God put those cherubim at the edges of the Garden of Eden, guarding the way to the tree of life to PROTECT us. So that we would not be able to eat of the tree of life .. because if we did, we would live forever thus not being able to be redeemed by Christ!!!!!!!

Be very careful of what you believe, test all spirits.

Genesis 3:22-24
22Then the LORD God said, "Behold, the man has become like one of us in knowing good and evil. Now, lest he reach out his hand and take also of the tree of life and eat, and live forever—" 23therefore the LORD God sent him out from the garden of Eden to work the ground from which he was taken. 24He drove out the man, and at the east of the garden of Eden he placed the cherubim and a flaming sword that turned every way to guard the way to the tree of life.