Isa 9:6 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.
1Ti 2:5 For there is one God, and one mediator between God and men, the man Christ Jesus.
Rom 1:3 Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh.
Gal 4:4 But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
Gal 4:5 To redeem them that were under the law, that we might receive the adoption of sons.
Gal 4:6 And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.
Gal 4:7 Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.
Joh 1:14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
Joh 1:18 No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared him.
Col 2:8 Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
Col 2:9 For in him dwelleth all the fulness of the Godhead bodily.
Jesus is the only begotten Son of God for He is the only human to ever be conceived by the Holy Spirit where all the saints are adopted in to the kingdom.
There is no God the Son for if He has no beginning then how is He a Son, and if they say He has a beginning as God the Bible says there was no God formed before Him, and there shall be no God formed after Him.
One God who is a Holy Spirit, and Father is a title for God, and the Son is the man Christ Jesus.
Not 3 persons in a trinity, but the 3 relationships God has with His people designated by titles.
Father- Creator of all things, and parent of the saints.
Son- God's visible relationship to the saints, and God in visible activity.
Holy Spirit- God's invisible relationship to the saints, and God is invisible activity, which the Spirit moved in creation, and Jesus was conceived by the Spirit, and the Spirit dwells in the saints.