So the debate is really about the English translations issue. Let's consider some cross-references. The true Word of God should stand out. The bold is for emphasis.
"Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God. And who, as I, shall call, and shall declare it, and set it in order for me, since I appointed the ancient people? and the things that are coming, and shall come, let them shew unto them. Fear ye not, neither be afraid: have not I told thee from that time, and have declared it? ye are even my witnesses. Is there a God beside me? yea, there is no God; I know not any." Isaiah 44:6-8
"Hearken unto me, O Jacob and Israel, my called; I am he; I am the first, I also am the last. Mine hand also hath laid the foundation of the earth, and my right hand hath spanned the heavens: when I call unto them, they stand up together." Isaiah 48:12-13
"And when I saw him, I fell at his feet as dead. And he laid his right hand upon me, saying unto me, Fear not; I am the first and the last: I am he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death." Revelation 1:17-18
"And unto the angel of the church in Smyrna write; These things saith the first and the last, which was dead, and is alive;" Revelation 2:8
"I was in the Spirit on the Lord's day, and heard behind me a great voice, as of a trumpet, Saying, I am Alpha and Omega, the first and the last: and, What thou seest, write in a book, and send it unto the seven churches which are in Asia; unto Ephesus, and unto Smyrna, and unto Pergamos, and unto Thyatira, and unto Sardis, and unto Philadelphia, and unto Laodicea." Revelation 1:10-11
"I am Alpha and Omega, the beginning and the end, the first and the last." Revelation 22:13
If Jesus Christ isn't God Almighty, how would He then qualify as Lord & Saviour?
"I, even I, am the LORD; and beside me there is no saviour." Isaiah 43:11
"Tell ye, and bring them near; yea, let them take counsel together: who hath declared this from ancient time? who hath told it from that time? have not I the LORD? and there is no God else beside me; a just God and a Saviour; there is none beside me. Look unto me, and be ye saved, all the ends of the earth: for I am God, and there is none else." Isaiah 45:21-22
"Yet I am the LORD thy God from the land of Egypt, and thou shalt know no god but me: for there is no saviour beside me." Hosea 13:4
"But is now made manifest by the appearing of our Saviour Jesus Christ, who hath abolished death, and hath brought life and immortality to light through the gospel:" 2 Timothy 1:10
"Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ;" Titus 2:13
"For so an entrance shall be ministered unto you abundantly into the everlasting kingdom of our Lord and Saviour Jesus Christ." 2 Peter 1:11
"For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning." 2 Peter 2:20