18 So with many other exhortations he preached the gospel to the people . 19 But when Herod the tetrarch was reprimanded by him because of Herodias , his brother's wife , and because of all the wicked things which Herod had done , 20 Herod also added this to them all : he locked John up in prison .
21 Now when all the people were baptized , Jesus was also baptized , and while He was praying , heaven was opened , 22 and the Holy Spirit descended upon Him in bodily form like a dove , and a voice came out of heaven , " You are My beloved Son , in You I am well-pleased ."
23 When He began His ministry, Jesus Himself was about thirty years of age , being , as was supposed , the son of Joseph , the son of Eli ,
Matthew Henry's Commentary on Luke 3:18-23
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.
Commentary on Luke 3:21-22
(Read Luke 3:21-22)
Christ did not confess sin, as others did, for he had none to confess; but he prayed, as others did, and kept up communion with his Father. Observe, all the three voices from heaven, by which the Father bare witness to the Son, were pronounced while he was praying, or soon after, Luke 9:35; John 12:28. The Holy Ghost descended in a bodily shape like a dove upon him, and there came a voice from heaven, from God the Father, from the excellent glory. Thus was a proof of the Holy Trinity, of the Three Persons in the Godhead, given at the baptism of Christ.
Commentary on Luke 3:23-38
(Read Luke 3:23-38)
Matthew's list of the forefathers of Jesus showed that Christ was the son of Abraham, in whom all the families of the earth are blessed, and heir to the throne of David; but Luke shows that Jesus was the Seed of the woman that should break the serpent's head, and traces the line up to Adam, beginning with Eli, or Heli, the father, not of Joseph, but of Mary. The seeming differences between the two evangelists in these lists of names have been removed by learned men. But our salvation does not depend upon our being able to solve these difficulties, nor is the Divine authority of the Gospels at all weakened by them. The list of names ends thus, "Who was the son of Adam, the son of God;" that is, the offspring of God by creation. Christ was both the son of Adam and the Son of God, that he might be a proper Mediator between God and the sons of Adam, and might bring the sons of Adam to be, through him, the sons of God. All flesh, as descended from the first Adam, is as grass, and withers as the flower of the field; but he who partakes of the Holy Spirit of life from the Second Adam, has that eternal happiness, which by the gospel is preached unto us.