"I am Alpha and Omega, says the sovereign Yahweh, who is and was and who is to come, the Almighty" (Revelation 1:8 RSV).
"When I saw him, I fell at his feet as though dead. But he laid his right hand upon me, saying, 'Fear not, I am the first and the last, and the living one; I DIED and behold I am ALIVE for evermore, and I have the keys of death and hades'" (Revelation 1:17,18 RSV).
Some have proposed these verses are speaking of one and the same person. Not so. The first (Revelation 1:8) of the one and only Yahweh, the one true El (Yahchanan [John] 17:3). The second (Revelation 1:17,18) speaks of Yahshua the Messiah; he who DIED, but is now ALIVE for evermore. The question has been asked, however, "How can BOTH the Father (Yahweh) AND the Son (Yahshua) be the first and the last, the beginning and the ending?" This is a good question. The answer is just as good - and easy.
Yahweh, the Father, the Creator of all things, is indeed the first and last, the beginning and the ending, the Alpha and the Omega (Revelation 1:8; 21:6; 22:13; Isayah 41:4; 44:6; 48:12). He is UNIQUE, which means he is one of a kind, having no equal. He is the Creator, so naturally, he is the Alpha, the first, the beginning. His purpose and plan will be done in the earth. He will have the last word, the last say so this makes him the last, the ending, the Omega.
Yahshua is also "the first and the last" (Revelation 1:18). He too, is UNIQUE (one of a kind, without equal), although not in the same way as the Father, Yahweh. Yahshua Messiah is the FIRST and the LAST in the following ways:
Yahweh and Yahshua are both unique, each in his own way, but they are not one and the same person. The Father (Yahweh) lives forever - from eternity past to eternity future. Never for a moment did he die. He lives perpetually (Deuteronomy 32:40). Not so, the Son, Yahshua. He DIED as a sacrifice for the sins of mankind, and remained dead for three days and three nights (72 hours). The Father, Yahweh, raised him from the grave - from the dead - and imparted to him everlasting life (Revelation 1:18).