Here he names a comprehensive thing. For the Apostleship even is called a ministry, and every spiritual work is a ministry. This is indeed a name of a peculiar office (viz. the 502 diaconate); however, it is used in a general sense. "Or he that teacheth, on teaching." See with what indifference he places them, the little first and the great afterwards, again giving us the same lesson, not to be puffed up or elated...."Or he that exhorteth, on exhortation." And this is a species of teaching too. For "if ye have any word of exhortation," it says, "speak unto the people." (Acts xiii. 15.) Then to show that it is no great good to follow after virtue unless this is done with the proper rule, he proceeds, "He that giveth" (<greek>metadidois</greek>, imparteth), "let him do it with simplicity." For it is not enough to give, but we must do it with munificence also, for this constantly answereth to the name of simplicity...For it is not enough to show mercy, but it behooves us to do it with a largeness and an ungrudging spirit, or rather not with an ungrudging, but even with a cheerful and rejoicing one, for not grudging does not amount to rejoicing...writing to the Corinthians also, he insisted very strongly upon. For to rouse them to such largeness he said, "He that soweth sparingly shall reap also sparingly, and he which soweth bountifully shall reap also bountifully. (2 Cor. ix. 6.) But to correct their temper he added, "Not grudgingly or of necessity." (ib. 7.) For both the shower of mercy ought to have, both ungrudgingness and pleasure.
Homily 21 on Romans 7, 4th Century
Through the toil of prayer and the anguish of your heart commune with those who are grieved at heart, and the Source of mercy will be opened up to your petitions.
Unknown, 7th century