And all the people were amazed, and said, Is not this the son of David?

People's New Testament

12:23 Is not this the Son of David? The promised Messiah King who was to be the Son of David, according to the prophets (Isa 11:10 2Sa 23:5).

Wesley's Notes

12:23 Is not this the son of David - That is, the Messiah.

Jamieson-Fausset-Brown Bible Commentary

23. And all the people were amazed, and said, Is not this the son of David?-The form of the interrogative requires this to be rendered, "Is this the Son of David?" And as questions put in this form (in Greek) suppose doubt, and expect rather a negative answer, the meaning is, "Can it possibly be?"-the people thus indicating their secret impression that this must be He; yet saving themselves from the wrath of the ecclesiastics, which a direct assertion of it would have brought upon them. (On a similar question, see on [1274]Joh 4:29; and on the phrase, "Son of David," see on [1275]Mt 9:27).

Matthew Henry's Concise Commentary

12:22-30 A soul under Satan's power, and led captive by him, is blind in the things of God, and dumb at the throne of grace; sees nothing, and says nothing to the purpose. Satan blinds the eyes by unbelief, and seals up the lips from prayer. The more people magnified Christ, the more desirous the Pharisees were to vilify him. It was evident that if Satan aided Jesus in casting out devils, the kingdom of hell was divided against itself; how then could it stand! And if they said that Jesus cast out devils by the prince of the devils, they could not prove that their children cast them out by any other power. There are two great interests in the world; and when unclean spirits are cast out by the Holy Spirit, in the conversion of sinners to a life of faith and obedience, the kingdom of God is come unto us. All who do not aid or rejoice in such a change are against Christ.