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.

Revelation 21:6

21:6 He also said to me, “It is done! I am the Alpha and the Omega, the beginning and the end. To the one who is thirsty I will give water free of charge from the spring of the water of life.