17 And when I saw Him, I fell at His feet as though dead. But He laid His right hand upon me, saying to me: Do not be afraid; I am the first and the last.

18 I am He Who lives, but was dead. And: Behold, I am alive forevermore. Hallelu Yahweh! And I have the keys of death and Sheol; the grave. Revelation 1:17-18

6 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. 

7 He that overcometh will inherit all things; and I will be his Father, and he shall be My son. Revelation 21:6-7

12 “Look, I am coming soon! My reward is with me, and I will give to each person according to what they have done. 

13 I am the Alpha and the Omega, the First and the Last, the Beginning and the End.

14 “Blessed are those who wash their robes, that they may have the right to the tree of life and may go through the gates into the city. 

15 Outside are the dogs, those who practice magic arts, the sexually immoral, the murderers, the idolaters and everyone who loves and practices falsehood.
 
16 “I, Jesus, have sent my angel to give you this testimony for the churches. I am the Root and the Offspring of David, and the bright Morning Star.”