Is everyone's God the same God?

Old Testament shows Jesus and Jesus shows God. New testament confirms Old Testament.

John 5:31-46

Psalm 59:9.- that is Jesus

John 6 - manna - bread of God comes down from heaven and gives life to the world

Isaiah 54:15 me = Jesus

John 7:38 scripture said

John 7:42 Messiah born in Bethlehem - Micah 5:2

John 10:35 reference to authority of OT. The scripture cannot be broken. Matt 5:17 (the law-waa m what is the Greek?)

John 12:37-41 Isaiah said these things because He saw Jesus's glory (God's glory). Implies where God is manifested Jesus is manifested

If you meet God as he truly reveals himself in the OT then you will know Jesus when he comes.

John Ch 13 to end of book. References to Old Testament confirming Jesus - bears witness to God.

1  John 2:23

Implications:

Islam God - is He the God in the Bible? Jews - do they worship the God in the Bible? Are these the same God? Ask them these questions:

Q1. Do you know God? Jn 8:19 - where is your Father? You know neither me nor my father. If you knew me you would know my Father also. 

Q2. Do you honor God? Jn 5:23 - whoever does not honor the Son does not honor the Father who singe him.

Q3. Do you love God? Jn 5:42-43 I have come in my Father’s name, and you do not accept me;

Litmus test for claim to know God. They know, love and honor Jesus also. If they claim to know/honor/love God but do not honor Jesus they are not telling the truth though they think they are.

If someone asks you if Islam and Jews bet glitter in the same God, Instead of do we believe in the same God, focus on"do we worship the same God."  Jesus said if you love God, you love me. You worship God, you worship me. Jesus who is the center of the NT is the same God is the OT.