Revelation 1:8

1:8 “I am the Alpha and the Omega,” ¹  says the Lord God – the one who is, and who was, and who is still to come – the All-Powerful! ² 

Revelation 12:9

12:9 So ³  that huge dragon – the ancient serpent, the one called the devil and Satan, who deceives the whole world – was thrown down to the earth, and his angels along with him.

[1:8]  ¹ tc The shorter reading “Omega” (ὦ, w) 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, arch kai telo" or Jh arch kai to telo"), found in א*^,2 1854 2050 2329 2351 Ï^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.

[1:8]  ² 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.”

[12:9]  ³ tn Here καί (kai) has been translated as “so” to indicate the result of the war in heaven.