1 John 5:5-8, NLT

5And who can win this battle against the world? Only those who believe that Jesus is the Son of God.

6And Jesus Christ was revealed as God’s Son by his baptism in water and by shedding his blood on the cross*5:6 Greek This is he who came by water and blood.—not by water only, but by water and blood. And the Spirit, who is truth, confirms it with his testimony. 7So we have these three witnesses*5:7 A few very late manuscripts add in heaven—the Father, the Word, and the Holy Spirit, and these three are one. And we have three witnesses on earth.8the Spirit, the water, and the blood—and all three agree.