God The Father God The Son And God The Holy Spirit These Three Are One

"For there are three that bear witness in heaven: The Father, The Word, and The Holy Spirit; and these three are one."  1 John 5:7 (NKJV)

The Apostle John, who wrote so that all would believe that Jesus, The Christ, is God, states here that there are three witnesses in heaven who attest to the fact that Jesus is God.  God, The Father, spoke from heaven and said that Jesus was His beloved Son. (Matthew 3:17, Matthew 17:5, Mark 9:7, Luke 9:35, and 2 Peter 1:17)  Jesus, The Son of God, is The Word of God (John 1:1 and 1:14), and He said "I and My Father are one." (John 10:30, John 10:38, John 14:10, John 17:11, and John 17:22)  Jesus, The Word, also said, he that has seen Him, has seen God, The Father. (John 14:9)  God, The Holy Spirit, descended from heaven and came to rest upon Him. (Matthew 1:32, Mark 1:10, and Luke 1:32)  The Holy Spirit came, at the request of Jesus, and gave power to the disciples of Jesus. (John 14:26, John 15:26, and John 16:7) 

We speak about God The Father, and God The Son, and God The Holy Spirit, as if They were three separate beings, but They are not separate.  There is one "triune" God, The Holy Trinity.  One God with three functions.  Jesus mentions all three and delineates Their role in accomplishing something. (John 14:26 and John 15:26)  In the beginning, God said let Us make man in Our image. (Genesis 1:26)  In the beginning, God created the heaven and the earth and The Spirit of God moved upon the face of the waters. (Genesis 1:1-2)  The Apostle John said in the beginning was The Word, The Word was with God, and The Word was God. (John 1:1)  The Word was made flesh and dwelt among us. (John 1:14)  Jesus was God in flesh, which He put on for our salvation.  A believer believes that Jesus is The Son of God and believes that Jesus is God.  Jesus said, "I do not pray for these alone (referring to His disciples), but also for those who will believe in Me through their word; that they all may be one, as You, Father, are in Me, and I in You; that they also may be one in Us, that the world may believe that You sent Me."