Who is Jesus?
"Simon Peter answered, 'You are the Christ, the Son of the Living God.' Jesus replied, '...this was not revealed to you by man, but by my Father in heaven.'" - Matthew 16:16
Who is God?
God is the beginning and the end. "'I am the Alpha and the Omega,' says the Lord God, 'who is, and who was, and who is to come, the Almighty.'" - Revelation 1:8
Who is the Holy Spirit?
The Father "will give you another Counselor to be with you forever - the Spirit of truth... [He] will teach you all things." - Jesus Christ, (John 14:16, 26).