1710–1714 · Matthew Henry, Commentary on Matthew 6.16-18
It is here supposed that religious fasting is a duty required of the disciples of Christ, when God, in his providence, calls to it, and when the case of their own souls upon any account requires it; when the bridegroom is taken away, then shall they fast, ch. ix. 15. Fasting is here put last, because it is not so much a duty for its own sake, as a means to dispose us for other duties. Prayer comes in between almsgiving and fasting, as being the life and soul of both. Christ here speaks especially of private fasts, such as particular persons prescribe to themselves, as free-will offerings, commonly used among the pious Jews; some fasted one day, some two, every week; others seldomer, as they saw cause. On those days they did not eat till sun-set, and then very sparingly. It was not the Pharisee's fasting twice in the week, but his boasting of it, that Christ condemned, Luke xviii. 12. It is a laudable practice, and we have reason to lament it, that is so generally neglected among Christians.