There is only ONE GOD; the Creator of the heavens and theearth and of
all mankind, manifested to mankind as FATHER (creator) SON,
(savior), and HOLY GHOST (indwelling Spirit) (Rom 8:11).
God is a Spirit (John 4:24), the Eternal One, the Creator of all
things; and of course, of all men, thus making Him their Father
He is the FIRST and the LAST and beside Him there is no other.
There was no God formed BEFORE Him, neither shall there be after Him.
Jesus is the SON of God according to the flesh (Romans 1:3), and the
very God Himself according to the Spirit. Jesus is the Christ (Matt
1:23); God made flesh (John 1:1-14); God manifested in the flesh (1
Tim 3:16); He which was, which is, and which is to come. THE ALMIGHTY
(Rev 1:8; Isa 9:6)
To this Jesus Himself testified when he said, "He that hath seen me
hath seen the father" (John 14:7-11); and "I and the Father are ONE"
Since it took the shedding of blood for the remission of sins of the
world (Heb 9:22), God as the Father being a Spirit had no blood to
shed; so He prepared a body of flesh and blood (Heb 10:5), that He
might fulfill the prophecy of Isa 43:11; "Beside ME there is no
SAVIOR"; and caused the angels to sing "For there is born this day in
the city of David, a SAVIOR which is CHRIST THE LORD".
The HOLY GHOST is not the third person in the Godhead, but rather the
manifestation of the Spirit of God (the Creator), and of the
ressurected Christ, coming to dwell in the hearts and lives of all
men who will be obedient to the gospel, and the Comforter, Sustainer,
and the Keeper (John 14:16-26; Rom 8:11).
So there are not three GODS, or persons, but three manifestations of
"These three are one" (1 John 5:7)