But the days will come,.... And that in a very little time, as they did: when the bridegroom shall be taken away from them: as their master, John, was taken away from them, and now in prison, and therefore it was no wonder they mourned and fasted; signifying, that in a short time he, the bridegroom of his church and people, should be taken away by death: and then they shall fast in those days; mourn, and be humbled, of which fasting was, a sign, for the death of their Lord, and on account of the many afflictions and persecutions they should endure for his sake; See Gill on Mat 9:15.