1 John 5:5-7

Young's Literal Translation

⁵ who is he who is overcoming the world, if not he who is believing that Jesus is the Son of God?

⁶ This one is he who did come through water and blood -- Jesus the Christ, not in the water only, but in the water and the blood; and the Spirit it is that is testifying, because the Spirit is the truth,

⁷ because three are who are testifying [in the heaven, the Father, the Word, and the Holy Spirit, and these -- the three -- are one;