“And because Jehovah is the beginning and end, the Alpha and Omega as He declares, and besides Him there is no other God OR Savior, then how can you explain in Revelation 22:12-17”
Rev. 1:8 identifies Jehovah, the Father, as the Alpha and Omega and the the one that is coming. Rev. 22:13 thus is speaking about about Him and the Rev. 22:16 shows the speaker changes to Jesus. In your quote the quotation marks show this change of speaker as recognized by the translators.
Rev. 21:5,6 identifies God (not Jesus) as the Alpha and Omega, the first and the last, the one on the throne.
There is no textual basis for believing verse 13 and verse 16 represent two different speakers. We know there was an angel, a messenger sent to John to carry these words, but John is careful to distinguish the messenger from the message. But if you want agency, here’s a great example of it, because the text makes clear the agent is empowered to speak on behalf of one principal, Jesus, and when he does so, he speaks in the first person, as he does when claiming to be Alpha and Omega. Jesus is God.
Rev 22:12 “And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be. [13] I am Alpha and Omega, the beginning and the end, the first and the last. [14] Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city. [15] For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie. [16] I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.”
Peace,
SR