Revelation 21:6 in the King James Version
And he said unto me, It is done. I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely.
Context
5 He who sits on the throne said, “Behold, I am making all things new.” He said, “Write, for these words of God are faithful and true.”
6 He said to me, “I am the Alpha and the Omega, the Beginning and the End. I will give freely to him who is thirsty from the spring of the water of life.
7 He who overcomes, I will give him these things. I will be his God, and he will be my son.