Jesus and God are one and the same. Jesus tells us in His own words that He and the Father are One. Each version of the Bible that I’ve looked at agrees on this. They are one...God is Jesus and Jesus is God. They dwell within one another.
John 10:27-30 (ESV) - My sheep hear my voice, and I know them, and they follow me. I give them eternal life, and they will never perish, and no one will snatch them out of my hand. My Father, who has given them to me, is greater than all, and no one is able to snatch them out of the Father’s hand. I and the Father are one."
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Jesus and God are both EQUAL as well.
John 5:18 - This was why the Jews were seeking all the more to kill him, because not only was he breaking the Sabbath, but he was even calling God his own Father, making himself equal with God.
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John 1:1 - In the beginning was the Word, and the Word was with God, and the Word was God.
John 1:14 - And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth.
If the Word is God, and the Word became flesh (Jesus), then Jesus IS the Word, which makes Him God. Just because the Word became flesh doesn’t mean that Jesus’ spirit changed.
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Jesus is stated as the true God and eternal life here:
1 John 5:20 - And we know that the Son of God has come and has given us understanding, so that we may know him who is true; and we are in him who is true, in his Son Jesus Christ. He is the true God and eternal life.
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And sure, Jesus died...but He ALSO rose from the dead after His death on the cross. Could any mere man do that? Not only did he rise from the dead, but he also saved us from our sins...again, no mere mortal man could do that.
John 19:28-30 - After this, Jesus, knowing that all was now finished, said ( to fulfill the Scripture), "I thirst." A jar full of sour wine stood there, so they put a sponge full of the sour wine on a hyssop branch and held it to his mouth. When Jesus had received the sour wine, he said, "It is finished," and he bowed his head and gave up his spirit.
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Thomas also calls Jesus “God”. As it has already been stated, if Jesus wasn’t God, then he would have told Thomas otherwise. After all, if he did NOT tell Thomas otherwise, that would make him a liar, and a sinner. Which we all know is impossible.
John 20:27-29 - Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing. And Thomas answered and said unto him, My LORD and my God. Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.
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God and Jesus are both stated as being the Alpha and Omega, the beginning and the end.
Revelation 1:8 - "I am the Alpha and the Omega," says the Lord God, "who is and who was and who is to come, the Almighty."
Revelation 22:12-13 - "Behold, I am coming soon, bringing my recompense with me, to repay everyone for what he has done. I am the Alpha and the Omega, the first and the last, the beginning and the end."