Did you notice in that same chapter, specifically verse 28, that Thomas identifies Jesus Christ as "My Lord and/even My God"?
You do realize that when Jesus addresses Himself in this way, He is identifying who He is? He instructs Mary to go and "tell the brethren" that he is ascending to His Father, your Father, His God and your God."
What would the brethren understand here?...That the only words they have before them are:
"I am the Lord: that is my name: and my glory will I not give to another..."
Isaiah 42:8
"Ye are my witnesses, saith the Lord, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me. I, even I, am the Lord; and beside me there is no saviour."
Isaiah 43:10-11
"I am the first, and I am the last; and beside me there is no God."
Isaiah 44:6
"I am the Lord that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself;"
Isaiah 4:24
"For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace."
Isaiah 9:6
More importantly, when Joel prophesied that God would pour out His Spirit upon on all flesh,
Joel 2:28, that same Spirit is identified as the Holy Ghost in
Acts 2:4. And the Holy Ghost of the NT is that Spirit of God in the OT.
Would the Jews, at any time, change their belief in God? No, they never would.
"Shema Yisrael Adonai Eloheinu Adonai Ehad"
"Hear, O Israel: The Lord our God is one Lord." (
Deut 6:4)