'Tree of Life' in the Bible

He who has ears, let him give ear to what the Spirit says to the churches. To him who overcomes I will give of the fruit of the tree of life, which is in the Paradise of God.

In the middle of its street. And on this side of the river and on that was the tree of life, having twelve sorts of fruits, giving its fruit every month; and the leaves of the tree give life to the nations.

A blessing on those whose robes are washed, so that they may have a right to the tree of life, and may go in by the doors into the town.

And if any man takes away from the words of this book, God will take away from him his part in the tree of life and the holy town, even the things which are in this book.