NET
18 The one who believes in him is not condemned. The one who does not believe has been condemned already, because he has not believed in the name of the one and only Son of God.
Darby
18 He that believes on him is not judged: but he that believes not has been already judged, because he has not believed on the name of the only-begotten Son of God.
KJV
18 “He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.”