3:4 And he saith unto them, Is it lawful to do good on the sabbath days, or to do evil? to save {b} life, or to kill? But they held their peace.
(b) He uses here the figure of speech called synecdoche, for this type of saying, to save the life, is the same as saying to save the man.
3:4 Is it lawful... to save life, or to kill? A home thrust at the fault-finders. They were harboring murderous thoughts; he was seeking to save life. Which was breaking the Sabbath?
3:4 Is it lawful to save life or to kill? - Which he knew they were seeking occasion to do. But they held their peace - Being confounded, though not convinced.
3:1-5 This man's case was piteous; he had a withered hand, which disabled him from working for his living; and those that are so, are the most proper objects of charity. Let those be helped that cannot help themselves. But stubborn infidels, when they can say nothing against the truth, yet will not yield. We hear what is said amiss, and see what is done amiss; but Christ looks at the root of bitterness in the heart, the blindness and hardness of that, and is grieved. Let hard-hearted sinners tremble to think of the anger with which he will look upon them shortly, when the day of his wrath comes. The great healing day now is the sabbath, and the healing place the house of prayer; but the healing power is of Christ. The gospel command is like that recorded here: though our hands are withered, yet, if we will not stretch them out, it is our own fault that we are not healed. But if we are healed, Christ, his power and grace, must have all the glory.