One who believes in the Son has eternal life, but one who disobeys{The same word can be translated "disobeys" or "disbelieves" in this context.} the Son won't see life, but the wrath of God remains on him."
The friend of the bridegroom is the person called among the Jews שושבי shoshabin; and παρανυμφος, paranymph, among the Greeks. Several matters are found in the Jewish writings relative to these, which may serve to throw light, not only on the discourse of John, but also on other passages of Scripture.