First it may be that Adam and Eve had access to this tree up to that point. As long as their will conformed to the will of God there was no danger to their going on eternally, being immortal.

第一，亚当和夏娃很有可能，可以接近生命树,只要他们遵从上帝的旨意,此时的永生，是没有威胁的。

耶鲁公开课 - 旧约导论课程节选