'Tree of Life' in the Bible

He who has an ear, let him hear what the Spirit says to the congregations. To him who overcomes, I will give him to eat from the tree of life that is in the midst of the Paradise of my God.

in the middle of its thoroughfare. And on this side of the river and on that was a tree of life, bearing twelve fruits, yielding its fruit according to each month. And the leaves of the tree were for the healing of the nations.

Blessed are those doing his commandments, so that their right will be to the tree of life, and they may enter in the gates into the city.

And if any man takes away from the words of the book of this prophecy, God will take away his part from the tree of life, and from the holy city, the things written in this book.