HKB
the shepherd's life excels that of his flock." But he is not to be blamed and looked upon as worthless if he excelled not before being raised to the prelacy.
Reply Obj. 3: According to 1 Cor. 12:4 seqq., "there are diversities of graces . . . and . . . of ministries . . . and . . . of operations." Hence nothing hinders one from being more fitted for the office of governing, who does not excel in the grace of holiness. It is otherwise in the government of the natural order, where that which is higher in the natural order is for that very reason more fitted to dispose of those that are lower.
FOURTH ARTICLE [II-II, Q. 185, Art. 4]
Whether a Bishop May Lawfully Forsake the Episcopal Cure, in Order to Enter Religion?
Objection 1: It seems that a bishop cannot lawfully forsake his episcopal cure in order to enter religion. For no one can lawfully pass from a more perfect to a less perfect state; since this is "to look back," which is condemned by the words of our Lord (Luke 9:62), "No man putting his hand to the plough, and looking back, is fit for the kingdom of God." Now the episcopal state is more perfect than the religious, as shown above (Q. 184, A. 7). Therefore just as it is unlawful to return to the world from the religious state, so is it unlawful to pass from the episcopal to the religious state.
Obj. 2: Further, the order of grace is more congruous than the order of nature. Now according to nature a thing is not moved in contrary directions; thus if a stone be naturally moved downwards, it cannot naturally return upwards from below. But according to the order of grace it is lawful to pass from the religious to the episcopal state. Therefore it is not lawful to pass contrariwise from the episcopal to the religious state.
Obj. 3: Further, in the works of grace nothing should be inoperative. Now when once a man is consecrated bishop he retains in perpetuity the spiritual power of giving orders and doing like things that pertain to the episcopal office: and this power would seemingly remain inoperative in one who gives up the episcopal cure. Therefore it would seem that a bishop may not forsake the episcopal cure and enter religion.
On the contrary, No man is compelled to do what is in itself unlawful. Now those who seek to resign their episcopal cure are compelled to resign (Extra, de Renunt. cap. Quidam). Therefore apparently it is not unlawful to give up the episcopal cure.
I answer that, The perfection of the episcopal state consists in this that for love of God a man binds himself to work for the salvation of his neighbor, wherefore he is bound to retain the pastoral cure so long as he is able to procure the spiritual welfare of the subjects entrusted to his care: a matter which he must not neglect--neither for the sake of the quiet of divine contemplation, since the Apostle, on account of the needs of his subjects, suffered patiently to be delayed even from the contemplation of the life to come, according to Phil. 1:22-25, "What I shall choose I know not, but I am straitened between two, having a desire to be dissolved, and to be with Christ, a thing by far better. But to abide still in the flesh is needful for you. And having this confidence, I know that I shall abide"; nor for the sake of avoiding any hardships or of acquiring any gain whatsoever, because as it is written (John 10:11), "the good shepherd giveth his life for his sheep."