1 John 5:7-12

So there are three witnesses: the Spirit, the water, and the blood; and these three witnesses agree. We believe people when they say something is true. But what God says is more important, and he has told us the truth about his own Son. Anyone who believes in the Son of God has the truth that God told us. Anyone who does not believe makes God a liar, because that person does not believe what God told us about his Son. This is what God told us: God has given us eternal life, and this life is in his Son. Whoever has the Son has life, but whoever does not have the Son of God does not have life.