Jesus is God because the Apostle Tomas called him God
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Joh 20:24 But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.
Joh 20:25 The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the print of the nails, and put my hand into his side, I will not believe.
Joh 20:26 And after eight days again his disciples were within, and Thomas with them. Jesus cometh, the doors being shut, and stood in the midst, and said, Peace be unto you.
Joh 20:27 Then saith he to Thomas, Reach hither thy finger, and see my hands; and reach hither thy hand, and put it into my side: and be not faithless, but believing.
Joh 20:28 Thomas answered and said unto him, My Lord and my God.
Joh 20:29 Jesus saith unto him, Because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed. [ASB]