1 John 5:1, 6-8

Everyone who believes that Jesus is the Christ is God’s child, and whoever loves the Father also loves the Father’s children.

Jesus Christ is the One who came by water and blood. He did not come by water only, but by water and blood. And the Spirit says that this is true, because the Spirit is the truth. So there are three witnesses: the Spirit, the water, and the blood; and these three witnesses agree.