27 John answered, "It's not possible for a person to succeed - I'm talking about eternal success - without heaven's help. 28 You yourselves were there when I made it public that I was not the Messiah but simply the one sent ahead of him to get things ready. 29 The one who gets the bride is, by definition, the bridegroom. And the bridegroom's friend, his 'best man' - that's me - in place at his side where he can hear every word, is genuinely happy. How could he be jealous when he knows that the wedding is finished and the marriage is off to a good start? 30 This is the assigned moment for him to move into the center, while I slip off to the sidelines.
Matthew Henry's Commentary on John 3:27-30
Commentary on John 3:22-36
(Read John 3:22-36)
John was fully satisfied with the place and work assigned him; but Jesus came on a more important work. He also knew that Jesus would increase in honour and influence, for of his government and peace there would be no end, while he himself would be less followed. John knew that Jesus came from heaven as the Son of God, while he was a sinful, mortal man, who could only speak about the more plain subjects of religion. The words of Jesus were the words of God; he had the Spirit, not by measure, as the prophets, but in all fulness. Everlasting life could only be had by faith in Him, and might be thus obtained; whereas all those, who believe not in the Son of God, cannot partake of salvation, but the wrath of God for ever rests upon them.