The entirety of the NT was written in Greek, and virtually all of the OT was written in Hebrew. We don't even know the details of the Aramaic dialect Jesus actually spoke.
Was Jesus a Greek ?
Jesus was born in Bethlehem and speaking Aramaic which is close to Arabic and Hebrew.
See how Jews spell the name of God
The Aramaic Name for God - Elah
By whom and using what text? Because John was written in Greek.
What about the OT, was it written in Greek too.
Assuming God's name was "X" , then we can see if "X" is the same God of the bible by knowing who is "X"
Say: He is Allah, the One! (112:1)
Allah, the eternally Besought of all! (112:2)
He begetteth not nor was begotten. (112:3)
And there is none comparable unto Him. (112:4)
Surely Allah chose Adam and Nuh and the descendants of Ibrahim and the descendants of Imran above the nations. (3:33)
Lo! We inspire thee as We inspired Noah and the prophets after him, as We inspired Abraham and Ishmael and Isaac and Jacob and the tribes, and Jesus and Job and Jonah and Aaron and Solomon, and as We imparted unto David the Psalms; (4:163)