וַיֹּ֥אמֶר דָּוִ֖ד לַאֲבִיגַ֑ל בָּר֤וּךְ יְהוָה֙ אֱלֹהֵ֣י יִשְׂרָאֵ֔ל אֲשֶׁ֧ר שְׁלָחֵ֛ךְ הַיּ֥וֹם הַזֶּ֖ה לִקְרָאתִֽי׃
다윗이 아비가일에게 이르되 오늘날 너를 보내어 나를 영접케 하신 이스라엘의 하나님 여호와를 찬송할지로다
Akeidat Yitzchak
Expulsion was necessary to maintain the nature of man. Had man's lifespan become unconditionally infinite through his eating from the tree of life, he would no longer have been a unique creature in the universe. He would have become a sub species of the celestial beings. By having to maintain a balance between the animalistic and the Divine, and by constantly having to face this challenge, he could remain human. Therefore, the gates of Eden had to remain closed to him.