Obj. 3: Further, Augustine says (Ep. lx, ad Aurel.): "It would be most regrettable, were we to exalt monks to such a disastrous degree of pride, and deem the clergy deserving of such a grievous insult," as to assert that "'a bad monk is a good clerk,' since sometimes even a good monk makes a bad clerk." And a little before this he says that "God's servants," i.e. monks, "must not be allowed to think that they may easily be chosen for something better," namely the clerical state, "if they should become worse thereby," namely by leaving the monastic state. Therefore it would seem that those who are in the clerical state are more perfect than religious.
Obj. 4: Further, it is not lawful to pass from a more perfect to a less perfect state. Yet it is lawful to pass from the monastic state to a priestly office with a cure attached, as appears (XVI, qu. i, can. Si quis monachus) from a decree of Pope Gelasius, who says: "If there be a monk, who by the merit of his exemplary life is worthy of the priesthood, and the abbot under whose authority he fights for Christ his King, ask that he be made a priest, the bishop shall take him and ordain him in such place as he shall choose fitting." And Jerome says (Ad Rustic. Monach., Ep. cxxv): "In the monastery so live as to deserve to be a clerk." Therefore parish priests and archdeacons are more perfect than religious.
Obj. 5: Further, bishops are in a more perfect state than religious, as shown above (A. 7). But parish priests and archdeacons, through having cure of souls, are more like bishops than religious are. Therefore they are more perfect.
Obj. 6: Further, virtue "is concerned with the difficult and the good" (Ethic. ii, 3). Now it is more difficult to lead a good life in the office of parish priest or archdeacon than in the religious state. Therefore parish priests and archdeacons have more perfect virtue than religious.
On the contrary, It is stated (XIX, qu. ii, cap. Duce): "If a man while governing the people in his church under the bishop and leading a secular life is inspired by the Holy Ghost to desire to work out his salvation in a monastery or under some canonical rule, since he is led by a private law, there is no reason why he should be constrained by a public law." Now a man is not led by the law of the Holy Ghost, which is here called a "private law," except to something more perfect. Therefore it would seem that religious are more perfect than archdeacons or parish priests.
I answer that, When we compare things in the point of super-eminence, we look not at that in which they agree, but at that wherein they differ. Now in parish priests and archdeacons three things may be considered, their state, their order, and their office. It belongs to their state that they are seculars, to their order that they are priests or deacons, to their office that they have the cure of souls committed to them.
Accordingly, if we compare these with one who is a religious by state, a deacon or priest by order, having the cure of souls by office, as many monks and canons regular have, this one will excel in the first point, and in the other points he will be equal. But if the latter differ from the former in state and office, but agree in order, such as religious priests and deacons not having the cure of souls, it is evident that the latter will be more excellent than the former in state, less excellent in office, and equal in order.
We must therefore consider which is the greater, preeminence of state or of office; and here, seemingly, we should take note of two things, goodness and difficulty. Accordingly, if we make the comparison with a view to goodness, the religious state surpasses the office of parish priest or archdeacon, because a religious pledges his whole life to the quest of perfection, whereas the parish priest or archdeacon does not pledge his whole life to the cure of souls, as a bishop does, nor is it competent to him, as it is to a bishop, to exercise the cure of souls in chief, but only in certain particulars regarding the cure of souls committed to his charge, as stated above (A. 6, ad 2). Wherefore the comparison of their religious state with their office is like the comparisons of the universal with the particular, and of a holocaust with a sacrifice which is less than a holocaust according to Gregory (Hom. xx in Ezech.). Hence it is said (XIX, qu. i, can. Clerici qui monachorum.): "Clerics who wish to take the monastic vows through being desirous of a better life must be allowed by their bishops the free entrance into the monastery."
This comparison, however, must be considered as regarding the genus of the deed; for as regards the charity of the doer it happens sometimes that a deed which is of less account in its genus is of greater merit if it be done out of greater charity.
On the other hand, if we consider the difficulty of leading a good life in religion, and in the office of one having the cure of souls, in this way it is more difficult to lead a good life together with the exercise of the cure of souls, on account of outward dangers: although the religious life is more difficult as regards the genus of the deed, by reason of the strictness of religious observance. If, however, the religious is also without orders, as in the case of religious lay brethren, then it is evident that the pre-eminence of order excels in the point of dignity, since by holy orders a man is appointed to the most august ministry of serving Christ Himself in the sacrament of the altar. For this requires a greater inward holiness than that which is requisite for the religious state, since as Dionysius says (Eccl. Hier. vi) the monastic order must follow the priestly orders, and ascend to Divine things in imitation of them. Hence, other things being equal, a cleric who is in holy orders, sins more grievously if he do something contrary to holiness than a religious who is not in holy orders: although a religious who is not in orders is bound to regular observance to which persons in holy orders are not bound.