6:6-11 Christ was neither ashamed nor afraid to own the purposes of his grace. He healed the poor man, though he knew that his enemies would take advantage against him for it. Let us not be drawn either from our duty or from our usefulness by any opposition. We may well be amazed, that the sons of men should be so wicked.But he knew there thoughts - He knew their thoughts - their dark, malicious designs - by the question, which they proposed to him, whether it was lawful to heal on the Sabbath-days (Matthew). In "reply" to their question, Jesus asked them whether they would not release a "sheep" on the Sabbath-day if it was fallen into a pit, and also asked "them" whether it was better to do good than to do evil on that day, implying that to "omit" to do "good" was, in fact, doing "evil." 9. good, or … evil, save … or destroy—By this novel way of putting His case, our Lord teaches the great ethical principle, that to neglect any opportunity of doing good is to incur the guilt of doing evil; and by this law He bound His own spirit. (See Mr 3:4.) See Poole on "Luke 6:6"

Then said Jesus unto them,.... The Scribes and Pharisees, who were watching him, and whose thoughts, and the reasonings of their minds, purposes, and intentions, he full well knew:

I will ask you one thing; or question, as they had asked him one before; Matthew 12:10

is it lawful on the sabbath days to do good, or to do evil? to save life, or to destroy it? See Gill on Mark 3:4 to which may be added, that to save life on the sabbath day was agreeable to their own canons: there were many things which they allowed might be done on the sabbath day, when life was in danger, which otherwise were not lawful; See Gill on Matthew 12:8.

Then said Jesus unto them, I will ask you one thing; Is it lawful on the sabbath days to do good, or to do evil? to save life, or to {b} destroy it?

(b) Whoever does not help his neighbour when he can, he kills him.