The word Trinity cannot be found in the Bible, but the truth of it can. While there's only one God, the Godhead consists of three distinct persons - the Father, Son, and Holy Spirit. All are equally omniscient, omnipotent, omnipresent, eternal, and unchanging, but each one has unique functions.
Scripture shows how each member of the Trinity fulfills His specific role, and it also reveals how those three roles interrelate. Let me express this idea in simple terms: The Father creates a plan, Jesus Christ implements the plan, and the Holy Spirit administers the plan.
According to the scriptures, all three members of the Trinity are fully God:
1. God the Father—Jesus Christ referred to His Father as God (John 6:27).
2. God the Son—John 1:1 identifies Jesus as divine. While Christ never specifically called Himself "God," His Father did apply the title to Him (Heb. 1:8). Furthermore, Jesus acknowledged having unlimited power—an attribute possessed only by the divine Creator (Matt. 28:18)—and also accepted worship (Matt. 14:33; John 9:38).
3. God the Holy Spirit—After declaring that God raised Christ from the dead, the New Testament goes on to credit the Holy Spirit with the resurrection (Acts 4:10; Rom. 8:11). Jesus reinforced that idea when He commanded the disciples to baptize new believers in the name of the Father, the Son, and the Holy Spirit.
The way of redemption showcases these roles in a clear manner. The Father designed and organized how mankind would be redeemed (Galatians 4:4-5). He set into motion a complex set of events, actions, and prophecies which culminated in the life and death of a Savior. The Son carried out the plan (John 6:37-38). He followed the Father's instructions to come to earth, even though that meant He would have to die. The Holy Spirit sees to it that every person feels a call toward God's saving grace (John 14:26, John 16:8; Romans 1:19-20). Furthermore, He transforms the lives and hearts of those who receive salvation through Jesus Christ.
The Father, Son, and Spirit are equal in their divine attributes. Yet each relates to mankind in a different way because He has a specific role. It's very important to understand this distinction: We do not have three gods; we have one God in three persons functioning uniquely and perfectly.
Taken from "The Truth About the Trinity " by In Touch Ministries (used by permission).