Augustine of Hippo — as excerpted in the Catena Aurea on Mark 3:1-5

“(de Con. Evan. ii. 35) But some one may wonder how Matthew could have said, that they themselves asked the Lord, if it was lawful to heal on the sabbath-day; when Mark rather relates that they were asked by our Lord, Is it lawful to do good on the sabbath-day, or to do evil? Therefore we must understand that they first asked the Lord, if it was lawful to heal on the sabbath-day, then that understanding their thoughts, and that they were seeking an opportunity to accuse Him, He placed in the middle him whom He was about to cure, and put those questions, which Mark and Luke relate. We must then suppose, that when they were silent, He propounded the parable of the sheep, and concluded, that it was lawful to do good on the sabbath-day. It goes on: But they were silent.”