Luke 6:8 - Albert Barnes' Notes on the Bible

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.”