Hid from him - Either through forgetfulness or indifference, so that purification had been neglected. In such a case there had been a guilty negligence, and a sin-offering was required. On the essential connection between impurity and the sin-offering, see Leviticus 12:1.

Any unclean thing - Either the dead body of a clean animal, or the living or dead carcass of any unclean creature. All such persons were to wash their clothes and themselves in clean water, and were considered as unclean till the evening, Leviticus 11:24-31. But if this had been neglected, they were obliged to bring a trespass-offering. What this meant, see in the notes on Leviticus 7 (note).

Or if a soul touch any unclean thing,.... Meaning an Israelite, for only such were bound by this law, which pronounced a person unclean that touched anything that was so in a ceremonial sense; this is the general, including whatsoever by the law was unclean; the particulars follow:

whether it be a carcass of an unclean beast, as the camel, the coney, the hare, and the swine, Leviticus 11:2.

or a carcass of unclean cattle; as the horse, and the ass, which were unclean for food, and their dead carcasses not to be touched, Leviticus 11:26.

or the carcass of unclean creeping things: such as are mentioned in Leviticus 11:29.

and if it be hidden from him; that he has touched them; or the uncleanness contracted by touching, he having inadvertently done it; or being ignorant of the law concerning such uncleanness:

he also shall be unclean; in a ceremonial sense, by thus touching them:

and guilty; of a breach of the command which forbids the touching of them: this is by way of prolepsis or anticipation; for as yet the law concerning unclean beasts, and creeping things, and pollution by touching them, was not given: Jarchi and Gersom interpret this guilt, of eating of holy things, and going into the sanctuary when thus defiled: in the Jewish Misnah (w) it is said, the word "hidden" is twice used, to show that he is guilty, for the ignorance of uncleanness, and for the ignorance of the sanctuary.

(w) Misn. Shebuot, c. 2. sect. 5.

The second was, if any one had touched the carcase of an unclean beast, or cattle, or creeping thing, or the uncleanness of a man of any kind whatever ("with regard to all his uncleanness, with which he defiles himself," i.e., any kind of defilement to which a man is exposed), and "it is hidden from him," sc., the uncleanness or defilement; that is to say, if he had unconsciously defiled himself by touching unclean objects, and had consequently neglected the purification prescribed for such cases. In this case, if he found it out afterwards, he had contracted guilt which needed expiation.

Or if a soul touch any unclean thing, whether it be a carcass of an unclean beast, or a carcass of unclean cattle, or the carcass of unclean creeping things, and if it be hidden from him; he also shall be unclean, and guilty.

5:2 If it be hidden from him - If he do it unawares, yet that would not excuse him, because he should have been more circumspect to avoid all unclean things. Hereby God designed to awaken men to watchfulness against, and repentance for, their unknown, or unobserved sins. He shall be clean - Not morally, for the conscience was not directly polluted by these things, but ceremonially.

Le 5:2, 3. Touching Any Thing Unclean.

2. if a soul touch any unclean thing-A person who, unknown to himself at the time, came in contact with any thing unclean, and either neglected the requisite ceremonies of purification or engaged in the services of religion while under the taint of ceremonial defilement, might be afterwards convinced that he had committed an offense.

5:1-13 The offences here noticed are, 1. A man's concealing the truth, when he was sworn as a witness to speak the truth, the whole truth, and nothing but the truth. If, in such a case, for fear of offending one that has been his friend, or may be his enemy, a man refuses to give evidence, or gives it but in part, he shall bear his iniquity. And that is a heavy burden, which, if some course be not taken to get it removed, will sink a man to hell. Let all that are called at any time to be witnesses, think of this law, and be free and open in their evidence, and take heed of prevaricating. An oath of the Lord is a sacred thing, not to be trifled with. 2. A man's touching any thing that was ceremonially unclean. Though his touching the unclean thing only made him ceremonially defiled, yet neglecting to wash himself according to the law, was either carelessness or contempt, and contracted moral guilt. As soon as God, by his Spirit, convinces our consciences of any sin or duty, we must follow the conviction, as not ashamed to own our former mistake. 3. Rash swearing, that a man will do or not do such a thing. As if the performance of his oath afterward prove unlawful, or what cannot be done. Wisdom and watchfulness beforehand would prevent these difficulties. In these cases the offender must confess his sin, and bring his offering; but the offering was not accepted, unless accompanied with confession and humble prayer for pardon. The confession must be particular; that he hath sinned in that thing. Deceit lies in generals; many will own they have sinned, for that all must own; but their sins in any one particular they are unwilling to allow. The way to be assured of pardon, and armed against sin for the future, is to confess the exact truth. If any were very poor, they might bring some flour, and that should be accepted. Thus the expense of the sin-offering was brought lower than any other, to teach that no man's poverty shall ever bar the way of his pardon. If the sinner brought two doves, one was to be offered for a sin-offering, and the other for a burnt-offering. We must first see that our peace be made with God, and then we may expect that our services for his glory will be accepted by him. To show the loathsomeness of sin, the flour, when offered, must not be made grateful to the taste by oil, or to the smell by frankincense. God, by these sacrifices, spoke comfort to those who had offended, that they might not despair, nor pine away in their sins. Likewise caution not to offend any more, remembering how expensive and troublesome it was to make atonement.