15 The interest of the people by now was building. They were all beginning to wonder, "Could this John be the Messiah?" 16 But John intervened: "I'm baptizing you here in the river. The main character in this drama, to whom I'm a mere stagehand, will ignite the kingdom life, a fire, the Holy Spirit within you, changing you from the inside out. 17 He's going to clean house - make a clean sweep of your lives. He'll place everything true in its proper place before God; everything false he'll put out with the trash to be burned." 18 There was a lot more of this - words that gave strength to the people, words that put heart in them. The Message! 19 But Herod, the ruler, stung by John's rebuke in the matter of Herodias, his brother Philip's wife, 20 capped his long string of evil deeds with this outrage: He put John in jail.
Matthew Henry's Commentary on Luke 3:15-20
Commentary on Luke 3:15-20
(Read Luke 3:15-20)
John the Baptist disowned being himself the Christ, but confirmed the people in their expectations of the long-promised Messiah. He could only exhort them to repent, and assure them of forgiveness upon repentance; but he could not work repentance in them, nor confer remission on them. Thus highly does it become us to speak of Christ, and thus humbly of ourselves. John can do no more than baptize with water, in token that they ought to purify and cleanse themselves; but Christ can, and will baptize with the Holy Ghost; he can give the Spirit, to cleanse and purify the heart, not only as water washes off the dirt on the outside, but as fire clears out the dross that is within, and melts down the metal, that it may be cast into a new mould. John was an affectionate preacher; he was beseeching; he pressed things home upon his hearers. He was a practical preacher; quickening them to their duty, and directing them in it. He was a popular preacher; he addressed the people, according to their capacity. He was an evangelical preacher. In all his exhortations, he directed people to Christ. When we press duty upon people, we must direct them to Christ, both for righteousness and strength. He was a copious preacher; he shunned not to declare the whole counsel of God. But a full stop was put to John's preaching when he was in the midst of his usefulness. Herod being reproved by him for many evils, shut up John in prison. Those who injure the faithful servants of God, add still greater guilt to their other sins.