The Trinity

Hebrews 9:14 informs us that Christ, who is God the Son through the divine Spirit, offered Himself to God, the heavenly Father. Thus we have in the act of redemption the involvement of the Trinity, the Godhead.
Keep in mind that the persons of the Godhead cannot fulfill their ministries separately. We may think of them separately, but they can never be separated. The early church fathers recognized this wholeness of God's person. They said we must not divide the substance of the Trinity, though we recognize the three persons.
Critics often have declared that the Bible contradicts itself in matters relating to the Trinity. For example, Genesis speaks of God creating the heavens and the earth. The New Testament declares that the Word—God the Son—created all things. Still other references speak of the Holy Spirit’s work in creation.
These are not contradictions. Father, Son and Spirit worked together in the miracles of creation, just as they worked together in the planning and effecting of human redemption. The Father, Son and Holy Spirit are consubstantial—going back to the statement of the early church fathers. They are one in substance and cannot be separated.

Verse
As soon as Jesus was baptized, he went up out of the water. At that moment heaven was opened, and he saw the Spirit of God descending like a dove and lighting on him. And a voice from heaven said, 'This is my Son, whom I love; with him I am well pleased.' Matthew 3:16–17

Thought
One definition of the Trinity is this: "God eternally exists as Three persons, Father, Son, and Holy Spirit, and each person is fully God and there is one God" (Wayne A. Grudem, Systematic Theology, 226).

Prayer
Forgive me, O God, for departmentalizing You. You are three persons each fully God but You are one God.