The Bible teaches that there are three separate persons in the Godhead: the Father, the Son, and the Holy Ghost.
God said, Let us make man in our image: Gen. 1:26.
man is become as one of us, to know good and evil: Gen. 3:22.
This is my beloved Son, in whom I am well pleased: Matt. 3:17 (17:5)
not mine to give, but … of my Father: Matt. 20:23.
not as I will, but as thou wilt: Matt. 26:39.
baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: Matt. 28:19
called the Son of the Highest: Luke 1:32.
Holy Ghost descended in a bodily shape like a dove: Luke 3:22.
Son can do nothing … but what he seeth the Father do: John 5:19.
Father that sent me beareth witness of me: John 8:18.
I and my Father are one: John 10:30.
believe the works … that the Father is in me: John 10:38.
a voice from heaven, saying, I have … glorified it: John 12:28.
my Father is greater than I: John 14:28.
that they might know thee the only true God: John 17:3.
That they all may be one; as thou, Father, art in me: John 17:21.
I ascend unto my Father, and your Father: John 20:17.
being by the right hand of God exalted: Acts 2:33.
saw the glory of God, and Jesus standing on the right hand of God: Acts 7:55.
not to think that the Godhead is like unto gold: Acts 17:29.
even his eternal power and Godhead: Rom. 1:20.
to us there is but one God: 1 Cor. 8:6.
Christ, who is the image of God: 2 Cor. 4:4.
I bow my knees unto the Father of our Lord: Eph. 3:14.
image of the invisible God, the firstborn: Col. 1:15.
dwelleth all the fulness of the Godhead bodily: Col. 2:9.
Hath in these last days spoken unto us by his Son: Heb. 1:2.
three that bear record in heaven, the Father, the Word, and the Holy Ghost: 1 Jn. 5:7.
The Father and the Son have tangible bodies of flesh and bone and that the Holy Ghost is a personage of spirit without flesh and bone.
When people speak of God, it is generally the Father who is referred to; that is, Elohim. All mankind are His children. The personage known as Jehovah in Old Testament times, and who is usually identified in the Old Testament as Lord (in small capitals), is the Son, known as Jesus Christ, and who is also a God. Jesus works under the direction of the Father and is in complete harmony with Him. All mankind are His brethren and sisters, He being the eldest of the spirit children of Elohim. Many of the things that the scripture says were done by God were actually done by the Lord (Jesus). Thus the scripture says that “God created the heaven and the earth” (Gen. 1:1), but we know that it was actually the Lord (Jesus) who was the creator (John 1:3, 10), or as Paul said, God created all things by Christ Jesus (Eph. 3:9). The Holy Ghost is also a God and is variously called the Holy Spirit, the Spirit, the Spirit of God, etc.
Although God created all things and is the ruler of the universe, being omnipotent, omniscient, and omnipresent (through His Spirit), mankind has a special relationship to Him that differentiates man from all other created things: man is literally God’s offspring, made in His image, whereas all other things are but the work of His hands (Acts 17:28–29).