According to John 1:1 Jesus has been “The Word” (Logos) from the beginning. This title we believe, denotes a spokesman...one who speaks for God. In instances where an angel spoke for God, this would have been the Logos...the pre-human Jesus.
It is confusing what this angel is actually identified as God in the text and speaks as if he is God.
Who Is “the Alpha and the Omega”? — Watchtower ONLINE LIBRARY
I can agree that it is probably not Jesus saying "I am the Alpha and Omega" in the first 2 times it appears but not so with the time it appears in Rev 22.
After all Jesus is definitely the "first and the last" (the same as what is said of God in Isaiah) and the same as what you say that God in Rev 22 said of Himself and what Jesus said of Himself at Rev 1:17.. How many firsts and lasts are there do you think?
Jesus is the one who is coming to judge the earth and in Revelations and in the OT it is Jehovah who is the one coming to judge the earth. The judgement of course will be given through Jesus when He comes but in the OT and in Revelations it is God who is said to be coming also.
Have you thought that God actually is coming in Jesus when Jesus comes? After all in Jesus dwell the fullness of absolute deity bodily. (Col 2:9--and the word used actually does mean "absolute deity" )
It is Jesus whom John wants to come in Rev 22:20, so Jesus coming seems to cover both Jesus and God coming.
Personally I doubt that God would lie to us that He is coming if in fact He is not coming.
The Bible provides more evidence against a trinity than it does for it. When Jesus walked the earth, there was no trinity. Jews did not teach or believe in such a thing. (Deuteronomy 6:4)
It is understandable that the Jews might have seen Deut 6:4 as meaning a certain thing but the Shema does not teach against the doctrine of the Trinity since the "one" used can be a "combination one" as when it is used to say that the man and woman would be one flesh. (Gen 2:24)
There is enough trinity type teaching in the OT to make it a possibility even if the full revelation of Jesus was no doubt needed to determine the doctrine for sure. The Jews should never have cut off the possibility of the Messiah actually being the real Son of God,,,,,,,,,,,equal to God,,,,,,,,,,,,and really the possible divinity of the Messiah seems to have been taught in the OT.