“... Luke has derived this episode from Mark 2:18-22; its Matthean parallel is found in 9:14-17. But Luke has again modified the [...] form, chiefly in the following ways: (1) He omits the [...] narrative about the fasting done by John's disciples and those of the Pharisees (Mark 2:18a). (2) He adds to the comment of Jesus' opponents the note of the frequency of their fasting and of the prayers of John's disciples—a note characteristic of Luke (see 11:1d), which never really is picked up in the controversy itself, dealing only with fasting. [...] Two of the sayings of Jesus recorded in the Coptic Gos. Thomas preserve variants of material in this episode. A parallel to the pronouncement in v. 34 is found in Gos. Thom. § 104: “They said [to him], ‘Come, let us pray today and let us fast (nesteuein).’ Jesus said, ‘But what then (gar) is the sin that I committed, or (e) in what have I been overcome? But (alla) when (hotan) the bridegroom (nymphios) comes out of the marriage-chamber (nymphon), then (tote) let them fast (nesteuein) and let them pray.’ ” This parallel, however, is only “a weak echo of Mark 2:19-20 parr.” (W. Schrage, Das Verhältnis, 193); and the Lucan addition to v. 33 about prayer is brought to its logical conclusion in Jesus' final words, “Let them fast and let them pray.” This saying is clearly dependent on the Lucan form. ...”