Revelation 22:1-2

22:1 Then the angel showed me the river of the water of life – water as clear as crystal – pouring out from the throne of God and of the Lamb, 22:2 flowing down the middle of the city’s main street. On each side of the river is the tree of life producing twelve kinds of fruit, yielding its fruit every month of the year. Its leaves are for the healing of the nations.

Revelation 22:14

22:14 Blessed are those who wash their robes so they can have access to the tree of life and can enter into the city by the gates.

Revelation 22:17

22:17 And the Spirit and the bride say, “Come!” And let the one who hears say: “Come!” And let the one who is thirsty come; let the one who wants it take the water of life free of charge.