Psalms 38:2

The Pelagians think that they know something great when they assert that “God would not command what He knew could not be done by man.” Who can be ignorant of this? But God commands some things which we cannot do, in order that we may know what we ought to ask of Him. For this is faith itself, which obtains by prayer what the law commands. He, indeed, who said, “If thou wilt, thou shalt keep the commandments,” did in the same book of Ecclesiasticus afterwards say, “Who shall give a watch before my mouth, and a seal of wisdom upon my lips, that I fall not suddenly thereby, and that my tongue destroy me not.” Now he had certainly heard and received these commandments: “Keep thy tongue from evil, and thy lips from speaking guile.” Forasmuch, then, as what he said is true: “If thou wilt, thou shalt keep the commandments,” why does he want a watch to be given before his mouth, like him who sa …

3. “I said, I will take heed to my ways, that I sin not with my tongue” ( ver. 1 ).…For it is not without reason that the tongue is set in a moist place, but because it is so prone to slip. Perceiving therefore how hard it was for a man to be under the necessity of speaking, and not to say something that he will wish unsaid, and filled with disgust at these sins, he seeks to avoid the like. To this difficulty is he exposed who is seeking to “leap beyond.”…Although I have “leaped beyond” the pleasures of earth, although the fleeting passions for things temporal ensnare me not, though now I despise these things below, and am rising up to better things than these, yet in these very better things the satisfaction of knowledge in the sight of God is enough for me. …

31. I might well reply as I have done even if it were a question of a promise made with full consciousness. But this is a new and shameless thing; he throws in my teeth a mere dream. How am I to answer? I have no time for thinking of anything outside my own sphere. I wish that I were not prevented from reading even the Holy Scriptures by the throngs that beset this place, and the gathering of Christians from all parts of the world. Still, when a man makes a dream into a crime, I can quote to him the words of the Prophets, who say that we are not to believe dreams; for even to dream of adultery does not condemn us to hell, and to dream of the crown of martyrdom does not raise us to heaven. Often I have seen myself in dreams dead and placed in the grave: often I have flown over the earth and been carried as if swimming through the air, over mountains and seas. …

1. I had made up my mind to use the words of the psalmist: “While the wicked was before me I was dumb with silence; I was humbled, and I held my peace even from good” and “I, as a deaf man, heard not; and I was as a dumb man that openeth not his mouth. Thus I was as a man that heareth not.” But charity overcomes all things, and my regard for you defeats my determination. I am, indeed, less careful to retaliate upon my assailants than to comply with your request. For among Christians, as one has said, not he who endures an outrage is unhappy, but he who commits it.

6. Therefore the saints of the Lord loved to keep silence, because they knew that a man’s voice is often the utterance of sin, and a man’s speech is the beginning of human error. Lastly, the Saint of the Lord said: “I said, I will take heed to my ways, that I offend not in my tongue.” For he knew and had read that it was a mark of the divine protection for a man to be hid from the scourge of his own tongue, and the witness of his own conscience. We are chastised by the silent reproaches of our thoughts, and by the judgment of conscience. We are chastised also by the lash of our own voice, when we say things whereby our soul is mortally injured, and our mind is sorely wounded. …

1. The prophet David taught us that we should go about in our heart as though in a large house; that we should hold converse with it as with some trusty companion. He spoke to himself, and conversed with himself, as these words show: “I said, I will take heed to my ways.” Solomon his son also said: “Drink water out of thine own vessels, and out of the springs of thy wells; ” that is: use thine own counsel. For: “Counsel in the heart of a man is as deep waters.” “Let no stranger,” it says, “share it with thee. Let the fountain of thy water be thine own, and rejoice with thy wife who is thine from thy youth. Let the loving hind and pleasant doe converse with thee.”

132. Howbeit , now must I needs confess the Prophet Isaiah’s confession, which he makes before declaring the word of the Lord: “Woe is me, my heart is smitten, for I, a man of unclean lips, and living in the midst of a people of unclean lips, have seen the Lord of Sabaoth.” Now if Isaiah said “Woe is me,” who looked upon the Lord of Sabaoth, what shall I say of myself, who, being “a man of unclean lips,” am constrained to treat of the divine generation? How shall I break forth into speech of things whereof I am afraid, when David prays that a watch may be set over his mouth in the matter of things whereof he has knowledge? O that to me also one of the Seraphim would bring the burning coal from the celestial altar, taking it in the tongs of the two testaments, and with the fire thereof purge my unclean lips!