But these are written that you may [come to] believe that Jesus is the Messiah, the Son of God, and that through this belief you may have life in his name.
Whoever believes in him will not be condemned, but whoever does not believe has already been condemned, because he has not believed in the name of the only Son of God.
Amen, amen, I say to you, whoever hears my word and believes in the one who sent me has eternal life and will not come to condemnation, but has passed from death to life.
And by faith in his name, this man, whom you see and know, his name has made strong, and the faith that comes through it has given him this perfect health, in the presence of all of you.
I write you this briefly through Silvanus, whom I consider a faithful brother, exhorting you and testifying that this is the true grace of God. Remain firm in it.
My children, I am writing this to you so that you may not commit sin. But if anyone does sin, we have an Advocate with the Father, Jesus Christ the righteous one.
Whoever believes in the Son of God has this testimony within himself. Whoever does not believe God has made him a liar by not believing the testimony God has given about his Son.
We also know that the Son of God has come and has given us discernment to know the one who is true. And we are in the one who is true, in his Son Jesus Christ. He is the true God and eternal life.