First of all, Jesus wasn't Jewish (he went to Europe to teach the Jews). Second, by "son of God", it is symbolically saying that Jesus was specifically chosen by God. Third, God doesn't have a "religion", he is pure righteousness.
( 91 ) Allah has not taken any son, nor has there ever been with Him any deity. [If there had been], then each deity would have taken what it created, and some of them would have sought to overcome others. Exalted is Allah above what they describe [concerning Him].
( 92 ) [He is] Knower of the unseen and the witnessed, so high is He above what they associate [with Him] . Quran (23:91-92) --------- ( 101 ) [He is] Originator of the heavens and the earth. How could He have a son when He does not have a companion and He created all things? And He is, of all things, Knowing.Quran (6:101)
God is God. Denominations are human creations. Jesus was born to a mother and father who both belonged to a people who who were called 'jews' and was raised in that society. Later he often spoke out against many of their practices and beliefs and was condemned to death by them.
Jesus Christ is descended from David: If He is from the line of David, then certainly Joseph could not be of his immediate paternal bloodline since Joseph was not his natural father. The bloodline could only be traced through His mother, Mary. She alone provided 100% of His genetic material, and thus provided the "flesh of the offspring of David", as shown in Rom 1:3, "...concerning His Son who was born to Him according to the flesh of the offspring of David." In the genealogy in Luke chapter 3, we see clearly that Mary was a direct descendant of King David which gave Jesus the legal right to ascend the Jewish throne as well as establishing without any doubt that Jesus was a Jew ethnically.
Jesus' mother was Jewish( Gods chosen people. Joseph was also Jewish and the line of David!he was Jesus' earthly/Adopted father. Jesus had his Heavenly Fathers' 'character: sinless and Holy! The seed of Adam(of sin) was not in him!