John Gill Commentary Mark 3:1

"And he entered again into the synagogue; and there was a man there who had his hand withered." — Mark 3:1 (ASV)

And he entered again into the synagogue
Perhaps in Capernaum, where he had before cast out the unclean spirit; but not on the same day, nor on that day he had had the debate with the Pharisees, about his disciples plucking the ears of corn on the sabbath day; but on another sabbath, perhaps the next; see (Luke 6:6) .

And there was a man there which had a withered hand ;
who came there either for a cure, knowing Christ to be in the synagogue, or for the sake of worship; (See Gill on Matthew 12:10).