XV. But if you would fortify yourself beforehand with the Seal, and secure yourself for the future with the best and strongest of all aids, being signed both in body and in soul with the unction, as Israel was of old with that blood and unction of the firstborn at night that guarded him, what then can happen to you, and what has been wrought out for you? Listen to the Proverbs. “If you sit, he says, you shall be without fear; and if you sleep, your sleep shall be sweet.” And listen to David giving you the good news, “You shall not be afraid for the terror by night, for mischance or noonday demon.” This, even while you live, will greatly contribute to your sense of safety (for a sheep that is sealed is not easily snared, but that which is unmarked is an easy prey to thieves), and at your death a fortunate shroud, more precious than gold, more magnificent than a sepulchre, more reverent than fruitless libations, more seasonable than ripe firstfruits, which the dead bestow on the dead, making a law out of custom. Nay, if all things forsake you, or be taken violently away from you; money, possessions, thrones, distinctions, and everything that belongs to this early turmoil, yet you will be able to lay down your life in safety, having suffered no loss of the helps which God gave you unto salvation.
XVI. But are you afraid lest you should destroy the Gift, and do you therefore put off your cleansing, because you cannot have it a second time? What? Would you not be afraid of danger in time of persecution, and of losing the most precious Thing you have— Christ? Would you then on this account avoid becoming a Christian? Perish the thought. Such a fear is not for a sane man; such an argument argues insanity. O incautious caution, if I may so. O trick of the Evil One! Truly he is darkness and pretends to be light; and when he can no longer prevail in open war, he lays snares in secret, and gives advice, apparently good, really evil, if by some trick at least he may prevail, and we find no escape from his plotting. And this is clearly what he is aiming at in this instance. For, being unable to persuade you to despise Baptism, he inflicts loss upon you through a fictitious security; that in consequence of your fear you may suffer unconsciously the very thing you are afraid of; and because you fear to destroy the Gift, you may for this very reason fail of the Gift altogether. This is his character; and he will never cease his duplicity as long as he sees us pressing onwards towards heaven from which he has fallen. Wherefore, O man of God, do thou recognize the plots of your adversary; for the battle is against him that has, and it is concerned with the most important interests. Take not your enemy to be your counsellor; despise not to be and to be called Faithful. As long as you are a Catechumen you are but in the porch of Religion; you must come inside, and cross the court, and observe the Holy Things, and look into the Holy of Holies, and be in company with the Trinity. Great are the interests for which you are fighting, great too the stability which you need. Protect yourself with the shield of faith. He fears you, if you fight armed with this weapon, and therefore he would strip you of the Gift, that he may the more easily overcome you unarmed and defenceless. He assails every age, and every form of life; he must be repelled by all.
XVII. Are you young? Stand against your passions; be numbered with the alliance in the army of God: do valiantly against Goliath. Take your thousands or your myriads; thus enjoy your manhood; but do not allow your youth to be withered, being killed by the imperfection of your faith. Are you old and near the predestined necessity? Aid your few remaining days. Entrust the purification to your old age. Why do you fear youthful passion in deep old age and at your last breath? Or will you wait to be washed till you are dead, and not so much the object of pity as of dislike? Are you regretting the dregs of pleasure, being yourself in the dregs of life? It is a shameful thing to be past indeed the flower of your age, but not past your wickedness; but either to be involved in it still, or at least to seem so by delaying your purification. Have you an infant child? Do not let sin get any opportunity, but let him be sanctified from his childhood; from his very tenderest age let him be consecrated by the Spirit. Fearest thou the Seal on account of the weakness of nature? O what a small-souled mother, and of how little faith! Why, Anna even before Samuel was born promised him to God, and after his birth consecrated him at once, and brought him up in the priestly habit, not fearing anything in human nature, but trusting in God. You have no need of amulets or incantations, with which the Devil also comes in, stealing worship from God for himself in the minds of vainer men. Give your child the Trinity, that great and noble Guard.
XVIII. What more? Are you living in Virginity? Be sealed by this purification; make this the sharer and companion of your life. Let this direct your life, your words, every member, every movement, every sense. Honour it, that it may honour you; that it may give to your head a crown of graces, and with a crown of delights may shield you. Are you bound by wedlock? Be bound also by the Seal; make it dwell with you as a guardian of your continence, safer than any number of eunuchs or of doorkeepers. Are you not yet wedded to flesh? Fear not this consecration; you are pure even after marriage. I will take the risk of that. I will join you in wedlock. I will dress the bride. We do not dishonour marriage because we give a higher honour to virginity. I will imitate Christ, the pure Grooms-man and Bridegroom, as He both wrought a miracle at a wedding, and honours wedlock with His Presence. Only let marriage be pure and unmingled with filthy lusts. This only I ask; receive safety from the Gift, and give to the Gift the oblation of chastity in its due season, when the fixed time of prayer comes round, and that which is more precious than business. And do this by common consent and approval. For we do not command, we exhort; and we would receive something of you for your own profit, and the common security of you both. And in one word, there is no state of life and no occupation to which Baptism is not profitable. You who are a free man, be curbed by it; you who are in slavery, be made of equal rank; you who are in grief, receive comfort; let the gladsome be disciplined; the poor receive riches that cannot be taken away; the rich be made capable of being good stewards of their possessions. Do not play tricks or lay plots against your own salvation. For even if we can delude others we cannot delude ourselves. And so to play against oneself is very dangerous and foolish.
Source: Orations (New Advent)