6Jesus Christ--he is the one who came by water and blood, not by water only, but by water and by blood. And the Spirit is the one who testifies, because the Spirit is the truth.
10The one who believes in the Son of God has this testimony within himself. The one who does not believe God has made him a liar, because he has not believed in the testimony God has given about his Son.
16If anyone sees a fellow believer committing a sin that doesn't lead to death, he should ask, and God will give life to him--to those who commit sin that doesn't lead to death. There is sin that leads to death. I am not saying he should pray about that.
20And we know that the Son of God has come and has given us understanding so that we may know the true one. We are in the true one--that is, in his Son Jesus Christ. He is the true God and eternal life.