This is the disciple who is bearing witness about these things, and who has written these things, and we know that his testimony is true.
Now there are also many other things that Jesus did. Were every one of them to be written, I suppose that the world itself could not contain the books that would be written. – John 21:24-25
Jesus Christ is Savior, the Giver of Eternal Life to those who Believe:
Jesus Christ is Life (1:4) and it is only through Him that man can be saved. The way (John 14:6) is exclusive, that is, there is no other name under heaven by which man can be saved from sin and death (Acts 4:12). This salvation from sin and from death was the very purpose for which Jesus came, the very reason that the Father sent Jesus (3:16-19, 36) was because He loved the world so much. John identified Jesus as the ‘Lamb of God which takes away the sin of the world” (1:36) which is a description of the prophetic fulfillment of the Passover- one of the Jewish festivals that foreshadowed God’s promise of salvation to the world. Jesus Christ, the lamb of God, was sent to take away our sins, and to save us from death. Indeed, Jesus Christ was slain from the foundation of the world, showing that God’s eternal purpose was to save His people from their sins.