This is the one who came by water and blood—Jesus Christ. He didn’t come by water only, but by water and blood. The Spirit is a truthful witness about this, because the Spirit is the truth.
“I’m baptizing you with water so you can show that you’ve turned away from your sins. But someone is coming after me who’s more powerful than I am. I’m not even worthy to carry his sandals. He will baptize you with the Holy Spirit and with fire.