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."
As the Christian Church was now to take place of the Jewish, and the latter was about to be cast off because it was polluted, John, by using the simile of the bride, bridegroom, and paranymph, or friend of the bridegroom, points out, as it were prophetically, of what kind the Christian Church must be: it must be as holy and pure as an uncontaminated virgin, because it is to be the bride or spouse of our Lord Jesus Christ: and God honours the Baptist by making him the paranymph; and indeed his whole preaching and baptism were excellently calculated to produce this great effect, as be strongly proclaimed the necessity of a total reformation of heart and manners, among all classes of the people. See the notes on Matthew 3:8-12, and on Luke 3:10-14. He heard the bridegroom's voice-he faithfully communicated what he had received from heaven, John 3:27, and he rejoiced exceedingly to find that he had got a people prepared for the Lord. The success of John's preaching greatly contributed to the success of that of Christ and his disciples. For this purpose he was endued with power from on high, and chosen to be the paranymph of the heavenly bridegroom.