How those are to be admonished who decline the office of preaching out of too great humility, and those who seize on it with precipitate haste.
(Admonition 26.) Differently to be admonished are those who, though able to preach worthily, are afraid by reason of excessive humility, and those whom imperfection or age forbids to preach, and yet precipitancy impells. For those who, though able to preach with profit, still shrink back through excessive humility are to be admonished to gather from consideration of a lesser matter how faulty they are in a greater one. For, if they were to hide from their indigent neighbours money which they possessed themselves they would undoubtedly show themselves to be promoters of their calamity. Let them perceive, then, in what guilt those are implicated who, in withholding the word of preaching from their sinning brethren, hide away the remedies of life from dying souls. Whence also a certain wise man says well, Wisdom that is hid, and treasure that is unseen, what profit is in them both? Were a famine wasting the people, and they themselves kept hidden grain, undoubtedly they would be the authors of death. Let them consider therefore with what punishment they must be visited who, when souls are perishing from famine of the word, supply not the bread of grace which they have themselves received. Whence also it is well said through Solomon, He that hides grain shall be cursed among the people. For to hide grain is to retain with one's self the words of sacred preaching. And every one that does so is cursed among the people, because through his fault of silence only he is condemned in the punishment of the many whom he might have corrected. If persons by no means ignorant of the medicinal art were to see a sore that required lancing, and yet refused to lance it, certainly by their mere inactivity they would be guilty of a brother's death. Let them see, then, in how great guilt they are involved who, knowing the sores of souls, neglect to cure them by the lancing of words. Whence also it is well said through the prophet, Cursed is he who keeps back his sword from blood. For to keep back the sword from blood is to hold back the word of preaching from the slaying of the carnal life. Of which sword it is said again, And my sword shall devour flesh.
Let these, therefore, when they keep to themselves the word of preaching, hear with terror the divine sentences against them, to the end that fear may expel fear from their hearts. Let them hear how he that would not lay out his talent lost it, with a sentence of condemnation added. Let them hear how Paul believed himself to be pure from the blood of his neighbours in this, that he spared not their vices which required to be smitten, saying, I take you to record this day, that I am pure from the blood of all men: for l have not shunned to declare unto you all the counsel of God . Let them hear how John is admonished by the angelic voice, when it is said, Let him that hears say, Come; in order doubtless that he into whose heart the internal voice has found its way may by crying aloud draw others whither he himself is carried; lest, even though called, he should find the doors shut, if he approaches Him that calls him empty. Let them hear how Esaias, because he had held his peace in the ministry of the word when illuminated by supernal light, blamed himself with a loud cry of penitence, saying Woe unto me that I have held my peace. Let them hear how through Solomon the knowledge of preaching is promised to be multiplied to him who is not held back by the vice of torpor in that whereto he has already attained. For he says, The soul which blesses shall be made fat; and he that inebriates shall be inebriated also himself. For he that blesses outwardly by preaching receives the fatness of inward enlargement; and, while he ceases not to inebriate the minds of his hearers with the wine of eloquence, he becomes increasingly inebriated with the drought of a multiplied gift. Let them hear how David offered this in the way of gift to God, that he did not hide the grace of preaching which he had received, saying, Lo I will not refrain my lips, O Lord, you know, I have not hid your righteousness within my heart: I have declared your truth and your salvation. Let them hear what is said by the bridegroom in his colloquy with the bride; You that dwellest in the gardens, your friends hearken: make me to hear your voice. For the Church dwells in the gardens, in that she keeps in a state of inward greenness the cultivated nurseries of virtues. And that her friends hearken to her voice is, that all the elect desire the word of her preaching; which voice also the bridegroom desires to hear, because he pants for her preaching through the souls of his elect. Let them hear how Moses, when he saw that God was angry with His people, and commanded swords to be taken for executing vengeance, declared those to be on God's side who should smite the crimes of the offenders without delay, saying, If any man is the Lord's, let him join himself to me; put every man his sword upon his thigh; go in and out from gate to gate through the midst of the camp, and slay every man his brother and friend and neighbour. For to put sword upon thigh is to set earnestness in preaching before the pleasures of the flesh; so that, when any one is earnest to speak holy words, he must needs have a care to subdue illicit suggestions. But to go from gate to gate is to run to and fro with rebuke from vice to vice, even to every one by which death enters in unto the soul. And to pass through the midst of the camp is to live with such impartiality within the Church that one who reproves the sins of offenders turns aside to show favour to none. Whence also it is rightly added, slay every man his brother and friend and neighbour. He in truth slays brother and friend and neighbour who, when he finds what is worthy of punishment, spares not even those whom he loves on the score of relationship from the sword of his rebuke. If, then, he is said to be God's who is stirred up by the zeal of divine love to smite vices, he surely denies himself to be God's who refuses to rebuke the life of the carnal to the utmost of his power.
Source: Pastoral Rule (New Advent)