(27) What new doctrine is this?--A various-reading gives a different structure, "What thing is this? A new doctrine with power. He commandeth even the unclean spirits . . ." "Doctrine" is, as elsewhere, the teaching taken as a whole, including manner as well as substance.

Verse 27. - What thing is this? what new doctrine is this? The now generally approved text gives a different rendering, namely, What is this? a new teaching! (Τί ἐστὶ τοῦτο δὶδαχη καινή). If this is the true reading - and there is excellent authority for it - it would mean that the bystanders inferred that this new and unexampled power indicated the accompanying gift of a "new teaching," a new revelation. Nay, more, it indicated that he who wrought these miracles must be the promised Messiah, the true God; for he alone by his power could rule the evil spirits.

1:23-28 The devil is an unclean spirit, because he has lost all the purity of his nature, because he acts in direct opposition to the Holy Spirit of God, and by his suggestions defiles the spirits of men. There are many in our assemblies who quietly attend under merely formal teachers; but if the Lord come with faithful ministers and holy doctrine, and by his convincing Spirit, they are ready to say, like this man, What have we to do with thee, Jesus of Nazareth! No disorder could enable a man to know Jesus to be the Holy One of God. He desires to have nothing to do with Jesus, for he despairs of being saved by him, and dreads being destroyed by him. See whose language those speak, that say to the Almighty, Depart from us. This unclean spirit hated and dreaded Christ, because he knew him to be a Holy One; for the carnal mind is enmity against God, especially against his holiness. When Christ by his grace delivers souls out of the hands of Satan, it is not without tumult in the soul; for that spiteful enemy will disquiet those whom he cannot destroy. This put all who saw it upon considering, What is this new doctrine? A work as great often is wrought now, yet men treat it with contempt and neglect. If this were not so, the conversion of a notorious wicked man to a sober, righteous, and godly life, by the preaching of a crucified Saviour, would cause many to ask, What doctrine is this?And they were all amazed,.... The people that were in the synagogue, who were met together for divine worship, were astonished, not only at his doctrine, as before, but at this miracle and power of his in casting out devils:

insomuch that they questioned among themselves, saying, what thing is this? They spake among themselves, as Luke says, Luke 4:36; they inquired of one another; they conferred together, talked over the point, and disputed among themselves, concerning both the doctrine and power of Christ, what, and how wonderful they were:

what new doctrine is this? This they said, not as fixing a brand of novelty upon it, as the Athenians did on Paul's doctrine, Acts 17:19, but as admiring it; being what was rare and unusual, and which they had never heard of from their Rabbins and Scribes, and which was confirmed by miracles;

for with authority commandeth he even the unclean spirits, and they do obey him: they not only observed the authority with which he delivered his doctrine, but the authority with which he cast out devils, by a word speaking; he not only commanded them to come out, but they immediately came out; their exorcists took authority upon them to command, but could not oblige the devils to obey; but these men took notice, that such was the authority of Christ in commanding, that the unclean spirits were obliged to obey, and did.