22 And the scribes who had come down from Jerusalem said, He has Beelzebub, and, By the prince of the demons he casts out demons. 23 And having called them to [him], he said to them in parables, How can Satan cast out Satan? 24 And if a kingdom has become divided against itself, that kingdom cannot subsist. 25 And if a house has become divided against itself, that house cannot subsist. 26 And if Satan rise up against himself, and is divided, he cannot subsist, but has an end. 27 But no one can, having entered into his house, plunder the goods of the strong [man] unless he first bind the strong [man], and then he will plunder his house. 28 Verily I say unto you, that all sins shall be forgiven to the sons of men, and all the injurious speeches [with] which they may speak injuriously; 29 but whosoever shall speak injuriously against the Holy Spirit, to eternity has no forgiveness; but lies under the guilt of an everlasting sin; 30 —because they said, He has an unclean spirit.
Matthew Henry's Commentary on Mark 3:22-30
Commentary on Mark 3:22-30
(Read Mark 3:22-30)
It was plain that the doctrine of Christ had a direct tendency to break the devil's power; and it was as plain, that casting of him out of the bodies of people, confirmed that doctrine; therefore Satan could not support such a design. Christ gave an awful warning against speaking such dangerous words. It is true the gospel promises, because Christ has purchased, forgiveness for the greatest sins and sinners; but by this sin, they would oppose the gifts of the Holy Ghost after Christ's ascension. Such is the enmity of the heart, that unconverted men pretend believers are doing Satan's work, when sinners are brought to repentance and newness of life.