Nicene and Post-Nicene Fathers, Vol. III:
Moral Treatises of St. Augustin: Section 19

19. As therefore the Apostle, nay rather the Spirit of God possessing and filling and actuating his heart, ceased not to exhort the faithful who had such substance, that nothing should be lacking to the necessities of the servants of God, who wished to hold a more lofty degree of sanctity in the Church, in cutting off all ties of secular hope, and dedicating a mind at liberty to their godly service p. 514 of warfare: likewise ought themselves also to obey his precepts, in sympathizing with the weak, and unshackled by love of private wealth, to labor with their hands for the common good, and submit to their superiors without a murmur; that there may be made up for them out of the oblations of good believers that which, while they labor and do some work whereby they may get their living, yet still by reason of bodily infirmities of some, and by reason of ecclesiastical occupations or erudition of the doctrine which bringeth salvation, they shall account to be lacking.