Assemblies of God

Unity of the One Being of Father, Son and Holy Ghost

Accordingly, therefore, there is that in the Son which constitutes Him the Son and not the Father; and there is that in the Holy Ghost which constitutes Him the Holy Ghost and not either the Father or the Son. Wherefore the Father is the Begetter, the Son is the Begotten, and the Holy Ghost is the one proceeding from the Father and the Son. Therefore, because these three persons in the Godhead are in a state of unity, there is but one Lord God Almighty and His name one.

John 1:18 [KJV/NIV]
John 15:26 [KJV/NIV]
John 17:11 [KJV/NIV]
John 17:21 [KJV/NIV]
Zechariah 14:9 [KJV/NIV]