The Trinity exists of three separate, but unified persons, existing eternally -God the Father, Jesus Christ the Son, and the Holy Spirit.
God is the Head of the Trinity and is our supreme Creator of all things. We are made in His image. He is both the Alpha and Omega being omnipresent, omniscient, and omnipotent.
“I'm the Alpha and the Omega, the Beginning and the End,” says the Lord “Who is and Who was and Who is to come, the Almighty.”
~ Revelation 1:8 KJV
Jesus Christ is also a member of the Trinity, the manifestation of God Himself (a deity) and yet fully man who was conceived of the Holy Spirit and born of a virgin. He was crucified on the cross as a final sacrifice for our sins and reconciled us to God the Father for eternity. He then rose from the grave and defeated both sin and death. He ascended into heaven to sit at the right hand of God. And whomever shall believe in Him, shall have eternal life.
“Looking unto Jesus the Author and Finisher of our faith; who, for the joy that was set before Him, endured the cross, despising the shame, and is set down at the right hand of the throne of God.”
~ Hebrews 12:2 KJV
The Holy Spirit is the third person of the Trinity and works to indwell, empower, and guide mankind to live righteously, according to Scripture, among one another. He takes up residence inside each believer in Christ and leads to a renewed spirit in each one of us. He assists the believer’s revelation of Scripture and equips us for godly living in servitude within the body of Christ.
“And grieve not the Holy Spirit of God, whereby ye are sealed unto the day of redemption.”
~ Ephesians 4:30 KJV