18 Now John's disciples and the Pharisees were fasting; and people came and said to him, "Why do John's disciples and the disciples of the Pharisees fast, but your disciples do not fast?" 19 Jesus said to them, "The wedding guests cannot fast while the bridegroom is with them, can they? As long as they have the bridegroom with them, they cannot fast. 20 The days will come when the bridegroom is taken away from them, and then they will fast on that day.
Matthew Henry's Commentary on Mark 2:18-20
Commentary on Mark 2:18-22
(Read Mark 2:18-22)
Strict professors are apt to blame all that do not fully come up to their own views. Christ did not escape slanders; we should be willing to bear them, as well as careful not to deserve them; but should attend to every part of our duty in its proper order and season.