Mathew 27:46 — And about the ninth hour Jesus cried out with a loud voice, saying, “Eli, Eli, lema sabachthani?” that is, “My God, my God, why have you forsaken me?“
John 17:3 — (Jesus praying to the Father): And this is eternal life, that they know you the only true God, and Jesus Christ whom you have sent.
John 20:17 — Jesus said to her, “Do not cling to me, for I have not yet ascended to the Father; but go to my brothers and say to them, ‘I am ascending to my Father and your Father, to my God and your God.'”
Romans 15:6 — that together you may with one voice glorify the God and Father of our Lord Jesus Christ.
2 Corinthians 1:3 — Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort. . .
Ephesians 1:3 — Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places. . .
Ephesians 1:17 – that the God of our Lord Jesus Christ, the Father of glory, may give you the Spirit of wisdom and of revelation in the knowledge of him. . .
Hebrews 1:9 — You have loved righteousness and hated wickedness; therefore God, your God, has anointed you with the oil of gladness beyond your companions.
1Peter 1:3 — Blessed be the God and Father of our Lord Jesus Christ! According to his great mercy, he has caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead. . .
Revelation 1:5-6 — and from Jesus Christ the faithful witness, the firstborn of the dead, and the ruler of kings on earth. To him who loves us and has freed us from our sins by his blood and made us a kingdom, priests to his God and Father, to him be glory and dominion forever and ever. Amen.
Revelation 3:2 — (Jesus addressing the seven churches): Wake up, and strengthen what remains and is about to die, for I have not found your works complete in the sight of my God.
Revelation 3:12 — (Jesus addressing the seven churches): The one who conquers, I will make him a pillar in the temple of my God. Never shall he go out of it, and I will write on him the name of my God, and the name of the city of my God, the new Jerusalem, which comes down from my God out of heaven, and my own new name.
Conclusion: The One God of Israel, Yahweh, is the God of Jesus the Messiah.