The Father is the fountainhead of the Trinity, the creator, the first cause. The Son is the LOGOS or expression of God, the holy begotten one of the Father and He is God. He reveals the Father to us. John 5:17
The Son of God is both the agent of creation and mankind's only redeemer.
The Holy Spirit, the third person of the Godhead or Trinity, proceeds from the Father and is worshipped and glorified together with the Father and the Son. He inspired the scriptures, empowers the saints, and convicts the world of sin, and of righteousness, and of judgement. (John16:

This is a mystery that will be understood once we enter heaven.