There is only one Almighty God, and the Bible makes it clear that only the Father "whose name alone is Jehovah" is God. (Psalms 83:18)
Jesus himself said so when he prayed to God:
"Jesus spoke these things, and, raising his eyes to heaven, he said: “Father...this means everlasting life, their taking in knowledge of YOU, THE ONLY TRUE GOD, and of the one whom you sent forth, Jesus Christ." (John 17:3)
1 Cor. 8:6: "But we know that there is only one God, the Father."
Ephesians 4:6: "one God and Father of all who is over all and through all and in all." - NASB
Rom. 15:6: "so that with one accord you may with one voice glorify the God and FATHER of our Lord Jesus Christ." - NASB.
2 Corinthians 11:31: "The God and FATHER of the Lord Jesus, He who is blessed forever, knows that I am not lying." - NASB
Revelation 1:6: "and He [Jesus Christ in heaven] has made us to be a kingdom, priests to His God and FATHER--to Him be the glory and the dominion forever and ever. Amen." - NASB.
For more, see
The Father (Jehovah) is God Alone
Who Is God?