Augustine of Hippo
Catena Aurea · Matthäusevangelium 13
Hear ye therefore the parable of the sower. When any one heareth the word of the kingdom, and understandeth it not, then cometh the wicked one, and catcheth away that which was sown in his heart. This is he which received seed by the way side. But he that received the seed into stony places, the same is he that heareth the word, and anon with joy receiveth it; Yet hath he not root in himself, but dureth for a while: for when tribulation or persecution ariseth because of the word, by and by he is offended. He also that received seed among the thorns is he that heareth the word; and the care of this world, and the deceitfulness of riches, choke the word, and he becometh unfruitful. But he that received seed into the good ground is he that heareth the word, and understandeth it; which also beareth fruit, and bringeth forth, some an hundredfold, some sixty, some thirty.
(Quæst. Ev. i. 9.) Otherwise; There is fruit an hundred-fold of the martyrs because of their satiety of life or contempt of death; a sixty-fold fruit of virgins, because they rest not warring against the use of the flesh; for retirement is allowed to those of sixty years’ age after service in war or in public business; and there is a thirty-fold fruit of the wedded, because theirs is the age of warfare, and their struggle is the more arduous that they should not be vanquished by their lusts. Or otherwise; We must struggle with our love of temporal goods that reason may be master; it should either be so overcome and subject to us, that when it begins to rise it may be easily repressed, or so extinguished that it never arises in us at all. Whence it comes to pass, that death itself is despised for truth’s sake, by some with brave endurance, by others with content, and by others with gladness—which three degrees are the three degrees of fruits of the earth—thirty-fold, sixty-fold, and an hundred-fold. And in one of these degrees must one be found at the time of his death, if any desires to depart well out of this life.