Jesus And God Are One - John 12:44-45

Who exactly is Jesus? Who is God? What role does the Holy Spirit play in our lives? The book of John gives us insight into the role of each part of the triune God.

John 12:44-45 KJV

44 Jesus cried and said, He that believeth on me, believeth not on me, but on him that sent me.

45 And he that seeth me seeth him that sent me.