'Tree of Life' in the Bible

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

through the middle of the street of the city; also, on either side of the river, the tree of life bearing twelve kinds of fruit, yielding its fruit every month. And the leaves of the tree were for the healing of the nations.

Blessed are those who wash their robes, so that they may have the right to the tree of life, and may enter by the gates into the city.

and if anyone takes away from the words of the book of this prophecy, God will take away his share from the tree of life and from the holy city, which are described in this book.