Whether all ecclesiastical prelates are in the state of perfection?

Objections

Objection 1 : It would seem that all ecclesiastical prelates are in a state of perfection. For Jerome commenting on Titus 1:5, "Ordain . . . in every city," etc. says: "Formerly priest was the same as bishop," and afterwards he adds: "Just as priests know that by the custom of the Church they are subject to the one who is placed over them, so too, bishops should recognize that, by custom rather than by the very ordinance of our Lord, they are above the priests, and are together the rightful governors of the Church." Now bishops are in the state of perfection. Therefore those priests also are who have the cure of souls.
Objection 2 : Further, just as bishops together with their consecration receive the cure of souls, so also do parish priests and archdeacons, of whom a gloss on Acts 6:3, "Brethren, look ye out . . . seven men of good reputation," says: "The apostles decided here to appoint throughout the Church seven deacons, who were to be of a higher degree, and as it were the supports of that which is nearest to the altar." Therefore it would seem that these also are in the state of perfection.
Objection 3 : Further, just as bishops are bound to "lay down their life for their sheep," so too are parish priests and archdeacons. But this belongs to the perfection of charity, as stated above (Article [2], ad 3). Therefore it would seem that parish priests and archdeacons also are in the state of perfection.