Revelation 1:8 New English Translation

⁸“I am the Alpha and the Omega,”^[a] says the Lord God—the one who is, and who was, and who is still to come—the All-Powerful!^[b]

Revelation 1:8 tc The shorter reading “Omega” (ὦ, ō) has superior ms evidence (א¹ A C 1611) to the longer reading which includes “the beginning and the end” (ἀρχὴ καὶ τέλος or ἡ ἀρχὴ καὶ τὸ τέλος, archē kai telos or hē archē kai to telos), found in א*^,2 1854 2050 2329 2351 M^A lat bo. There is little reason why a scribe would have deleted the words, but their clarifying value and the fact that they harmonize with 21:6 indicate that they are a secondary addition to the text.
Revelation 1:8 tn On this word BDAG 755 s.v. παντοκράτωρ states, “the Almighty, All-Powerful, Omnipotent (One) only of God…(ὁ) κύριος ὁ θεὸς ὁ π.…Rv 1:8; 4:8; 11:17; 15:3; 16:7; 21:22.”

New English Translation (NET)