I John 5:6-13

Jesus is God. The Holy Spirit, the water, and the blood are witnesses. Water being His baptism and blood His crucifixion. There were also human witnesses. John the baptizer, Simeon (Luke 2:34-35), and Anna (Luke 2:36-38). Believers have eternal life. Salvation is a gift, not something you earn. We are not saved by our own works, but by our faith.