Origen

“ And to this the Saviour said, teaching us that absolute chastity is a gift given by God, and not merely the fruit of training, but given by God with prayer, “All men cannot receive the saying, but they to whom it is given.” ”

“ Now after these things, having considered how many possible accidents may arise in marriages, which it was necessary for the man to endure and in this way suffer very great hardships, or if he did not endure, to transgress the word of Christ, the disciples say to him, taking refuge in celibacy as easier, and more expedient than marriage, though the latter appears to be expedient, “If the case of the man is so with his wife, it is not expedient to marry.” ”

“ Further, let the saying, “All men cannot receive the saying but they to whom it is given,” [13] be a stimulus to us to ask worthily of receiving; and this, “What son is there of you who shall ask his father for a fish, will he for a fish give him a serpent,” [14] etc. God therefore will give the good gift, perfect purity in celibacy and chastity, to those who ask Him with the whole soul, and with faith, and in prayers without ceasing. ”