I have heard some explanations regarding The Fall and would like to verify if these are Orthodox teachings.
God took three measures to prevent man from being eternal in his sin.
1. God drove man out of Eden
2. God placed Cherubim to protect the tree
3. God allowed death
“And now, lest he put out his hand and take also of the tree of life, and eat, and live forever”— 23 therefore the Lord God sent him out of 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.” Genesis 3:22-24
I am not sure about the third point whether God allowed man to die for our protection or punishment. It is less Augustinian to say for our protection but I didn’t wan’t to jump to the wrong conclusion.
So my question is are the above three points and specially the third one meant for our protection or punishment?