Revelations 22
12 And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be.
13 I am Alpha and Omega, the beginning and the end, the first and the last.

Isaiah 44:6
“Thus says the Lord, the King of Israel and his Redeemer, the Lord of hosts: I am the first and I am the last; besides me there is no god” (44:6).