Mark 2:18

And the disciples of John and of the Pharisees used to
fast
Or "were fasting"; perhaps that very day, and so were the more displeased at this entertainment, Matthew had made for Christ and his disciples, and at their being at it; or fasting was usual with them: they fasted often, both John's disciples, and the disciples of the Pharisees, or the Pharisees themselves; so the Vulgate Latin reads: of their frequent fasting, (See Gill on Matthew 9:14),

and they came:
both the disciples of John, ( Matthew 9:14 ) , and the Scribes and Pharisees, ( Luke 5:30 Luke 5:33 ) ,

and say unto him, why do the disciples of John and of the Pharisees
fast, but thy disciples fast not? (See Gill on Matthew 9:14).