John the Apostle
Revelation 1:8ESV·traditional attribution

“I am the Alpha and the Omega,” says the Lord God, “who is and who was and who is to come, the Almighty.”

Matthew Henry Presbyterian @wholebiblehenry

We have here an apostolic benediction on those who should give a due regard to this divine revelation; and this benediction is given more generally and more especially. I. More generally, to all who either read or hear the words of the prophecy.

Commenting on Revelation 1:3-8

John Gill Reformed Baptist @doctorgill

I am Alpha and Omega,.... These are the words of Christ himself, appearing at once, and confirming what John had said of him, concerning his person, offices, and future coming: Alpha is the first letter, and Omega the last in the Greek alphabet, and signifies that Christ is the first and the last, as it is interpreted in Rev 1:11, and is a character often...

Albert Barnes Presbyterian @notesbybarnes

Verse 8. I am Alpha and Omega. These are the first and the last letters of the Greek alphabet, and denote properly the first and the last. So in , when the two expressions are united, "I am Alpha and Omega, the beginning and the end, the first and the last." So in , the speaker says of himself, "I am the first and the...