Augustine of Hippo

(Serm. 210. 3.) Otherwise; Every one who rightly fasts, either humbles his soul in the groaning of prayer, and bodily chastisement, or suspends the motion of carnal desire by the joys of spiritual meditation. And the Lord here makes answer respecting both kinds of fasting; concerning the first, which is in humiliation of soul, He says, The children of the bridegroom cannot mourn. Of the other which has a feast of the Spirit, He next speaks, where He says, No man putteth a patch of undressed cloth. Then we must mourn because the Bridegroom is taken away from us. And we rightly mourn if we burn with desire of Him. Blessed they to whom it was granted before His passion to have Him present with them, to enquire of Him what they would, to hear what they ought to hear. Those days the fathers before His coming sought to see, and saw them not, because they were placed in another dispensation, one in which He was proclaimed as coming, not one in which He was heard as present. For in us was fulfilled that He speaks of, The days shall come when ye shall desire to see one of these days, and shall not be able. (Luke 17:22.) Who then will not mourn this? Who will not say, My tears have been my meat day and night, while they daily say unto me, Where is now thy God? (Ps. 42:3.) With reason then did the Apostle seek to die and to be with Christ.