Second Instruction
5 This I think it right that you who are about to be initiated should learn. For this word is a covenant with the Master. And just as we, when we buy slaves, first ask those who are being sold if they are willing to be our servants: So also does Christ. When He is about to receive you into service, He first asks if you wish to leave that cruel and relentless tyrant, and He receives covenants from you. For his service is not forced upon you. And see the lovingkindness of God. For we, before we put down the price, ask those who are being sold, and when we have learned that they are willing, then we put down the price. But Christ not so, but He even put down the price for us all; his precious blood. For, He says, you were bought with a price. Notwithstanding, not even then does He compel those who are unwilling, to serve him; but except you have grace, He says, and of your own accord and will determinest to enroll yourself under my rule, I do not compel, nor force you. And we should not have chosen to buy wicked slaves. But if we should at any time have so chosen, we buy them with a perverted choice, and put down a corresponding price for them. But Christ, buying ungrateful and lawless slaves, put down the price of a servant of first quality, nay rather much more, and so much greater that neither speech nor thought can set forth its greatness. For neither giving heaven, nor earth, nor sea, but giving up that which is more valuable than all these, his own blood, thus He bought us. And after all these things, he does not require of us witnesses, or registration, but is content with the single word, if you say it from your heart. “I renounce you, Satan, and your pomp,” has included all. Let us then say this, “I renounce you, Satan,” as men who are about in that world at that day to have that word demanded of them, and let us keep it in order that we may then return this deposit safe. But Satan's pomps are theatres, and the circus, and all sin, and observance of days, and incantations and omens.
“And what are omens?” says one. Often when going forth from his own house he has seen a one-eyed or lame man, and has shunned him as an omen. This is a pomp of Satan. For meeting the man does not make the day turn out ill, but to live in sin. When you go forth, then, beware of one thing— that sin does not meet you. For this it is which trips us up. And without this the devil will be able to do us no harm. What do you say? You see a man, and shunnest him as an omen, and dost not see the snare of the devil, how he sets you at war with him who has done you no wrong, how he makes you the enemy of your brother on no just pretext; but God has bidden us love our enemies; but you are turned away from him who did you no wrong, having nothing to charge him with, and do you not consider how great is the absurdity, how great the shame, rather how great is the danger? Can I speak of anything more absurd? I am ashamed, indeed, and I blush: But for your salvation's sake, I am, I am compelled to speak of it. If a virgin meet him he says the day becomes unsuccessful; but if a harlot meet him, it is propitious, and profitable, and full of much business; are you ashamed? And do you smite your foreheads, and bend to the ground? But do not this on account of the words which I have spoken, but of the deeds which have been done. See then, in this case, how the devil hid his snare, in order that we might turn away from the modest, but salute and be friendly to the unchaste. For since he has heard Christ saying that “He who looks on a woman to desire her, has already committed adultery with her,” and has seen many get the better of unchastity, wishing by another wrong to cast them again into sin, by this superstitious observance he gladly persuades them to pay attention to whorish women.
And what is one to say about them who use charms and amulets, and encircle their heads and feet with golden coins of Alexander of Macedon. Are these our hopes, tell me, that after the cross and death of our Master, we should place our hopes of salvation on an image of a Greek king? Do you not know what great result the cross has achieved? It has abolished death, has extinguished sin, has made Hades useless, has undone the power of the devil, and is it not worth trusting for the health of the body? It has raised up the whole world, and do you not take courage in it? And what would you be worthy to suffer, tell me? Thou dost not only have amulets always with you, but incantations bringing drunken and half-witted old women into your house, and are you not ashamed, and do you not blush, after so great philosophy, to be terrified at such things? And there is a graver thing than this error. For when we deliver these exhortations, and lead them away, thinking that they defend themselves, they say, that the woman is a Christian who makes these incantations, and utters nothing else than the name of God. On this account I especially hate and turn away from her, because she makes use of the name of God, with a view to ribaldry. For even the demons uttered the name of God, but still they were demons, and thus they used to say to Christ, “We know you who you are, the Holy One of God,” and notwithstanding, he rebuked them, and drove them away. On this account, then, I beseech you to cleanse yourselves from this error, and to keep hold of this word as a staff; and just as without sandals, and cloak, no one of you would choose to go down to the market-place, so without this word never enter the market-place, but when you are about to pass over the threshold of the gateway, say this word first: I leave your ranks, Satan, and your pomp, and your service, and I join the ranks of Christ. And never go forth without this word. This shall be a staff to you, this your armor, this an impregnable fortress, and accompany this word with the sign of the cross on your forehead. For thus not only a man who meets you, but even the devil himself, will be unable to hurt you at all, when he sees you everywhere appearing with these weapons; and discipline yourself by these means henceforth, in order that when you receive the seal you may be a well-equipped soldier, and planting your trophy against the devil, may receive the crown of righteousness, which may it be the lot of us all to obtain, through the grace and lovingkindness of our Lord Jesus Christ, with whom be glory to the Father and to the Holy Spirit for ever and ever— Amen.
Source: Instructions to Catechumens (New Advent)