Genesis 3:23-24 NKJV

[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.

Revelation 2:7 NKJV

[7] "He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes I will give to eat from the tree of life, which is in the midst of the Paradise of God."'