Genesis 35:2

2.Then Jacob said unto his household. The prompt obedience of Jacob is here described. For when he heard the voice of God, he neither doubted nor disputed with himself respecting what was necessary to be done: but, as he was commanded, he quickly prepared himself for his journey. But to show that he obeyed God, he not only collected his goods, but also purified his house from idols. For if we desire that God should be propitious to us, all hindrances are to be removed, which in any way separate him from us. Hence also we perceive to what point the theft of Rachel tended. For, (as we have said,) she neither wished to draw her father away from superstition, but rather followed him in his fault; nor did she keep this poison to herself, but spread it through the whole family. Thus was that sacred house infected with the worst contagion. Whence also it appears, how great is the propensity of mankind to impious and vicious worship; since the domestics of Jacob, to whom the pure religion had been handed down, thus eagerly laid hold on the idols offered to them. And Jacob was not entirely ignorant of the evil: but it is probable that he was so far under the influence of his wife, that, by connivance, he silently cherished this plague of his family. And truly, in one word, he convicts and condemns both himself and the rest, by calling idols “strange gods.” For whence arose the distinction here made, unless from his knowing that he ought to be devoted to one God only? For there is a tacit comparison between the God of Abraham and all other gods which the world had wickedly invented for itself: not because it was in the power of Abraham to determine who should be the true God: but because God had manifested himself to Abraham, he also wished to assume His name. Jacob therefore confesses his own negligence, in having admitted to his house idols, against which the door had been closed by God. For wherever the knowledge of the true God shines, it is necessary to drive far away whatever men fabricate to themselves which is contrary to the true knowledge of him. But whereas Jacob had been lulled to sleep either by the blandishments of his wife, or had neglected to do his duty, through the carelessness of the flesh, he is now aroused by the fear of danger, to become more earnest in the pure worship of God. If this happened to the holy patriarch, how much more ought carnal security to be dreaded by us, in the season of prosperity? If, however, at any time such torpor and neglect shall have stolen upon us, may the paternal chastisement of God excite and stimulate us diligently to purge ourselves from whatever faults we, by our negligence, may have contracted. The infinite goodness of God is here conspicuous; seeing that he still deigned to regard the house of Jacob, though polluted with idols, as his sanctuary. For although Jacob mingled with idolaters, and even his wife, — a patroness of idolatry, — slept in his bosom, his sacrifices were always acceptable to God. Yet this great benignity of God in granting pardon, neither lessens the fault of the holy man, nor ought to be used by us as an occasion for negligence. For though Jacob did not approve of these superstitions, yet it was not owing to him that the pure worship of God was not gradually subverted. For the corruption which originated with Rachel was now beginning to spread more widely. And the example of all ages teaches the same thing. For scarcely ever does the truth of God so prevail among men, however strenuously pious teachers may labor in maintaining it, but that some superstitions will remain among the common people. If dissimulation be added to them, the mischief soon creeps onward, until it takes possession of the whole body. By being thus cherished, the mass of superstitions which at this day pervades the Papacy, has gained its influence. Wherefore we must boldly resist those beginnings of evil, lest the true religion should be injured by the sloth and silence of the pastors.

And be clean, and change your garments. This is an exhortation to the external profession of penitence. For Jacob wishes that his domestics, who before had polluted themselves, should testify their renewed purification by a change of garments. With the same design and end, the people, after they had made the golden calves, were commanded by Moses to put off their ornaments. Only in that instance a different method was observed; namely, that the people having laid aside their ornaments, simply confessed their guilt by mournful and mean apparel: but in the house of Jacob the garments were changed, in order that they who had been defiled might come forth as new men: yet the end (as I have said) was the same, that by this external rite, idolaters might learn how great was the atrocity of their wickedness. For although, repentance is an inward virtue, and has its seat in the heart, yet this ceremony was by no means superfluous; for we know how little disposed men are to be displeased with themselves on account of their sins, unless they are pierced with many goads. Again, the glory of God is also concerned in this, that men should not only inwardly reflect upon their guilt, but at the same time openly declare it. This then is the sum; although God had given no express command concerning the purifying of his house, yet because he had commanded an altar to be raised, Jacob, in order that he might yield pure obedience to God, took care that all impediments should be removed; and he did this when necessity compelled him to seek help from God.