3. Mose 15:31

Thus shall ye separate the children of Israel from their uncleanness - By this separation the cause became less frequent, and the contagion, if it did exist, was prevented from spreading. So pest-houses and fever-wards are constructed for the purpose of separating the infected from the sound; and thus contagion is lessened, and its diffusion prevented. That they die not - That life may be prolonged by these prudential cares; and that he who is morally and legally unclean, may not presume to enter into the tabernacle of God till purified, lest he provoke Divine justice to consume him, while attempting to worship with a polluted mind and impure hands. 1. How unpromising and how forbidding, at the first view, is this chapter! and yet how full of wise, humane, and moral regulations, manifesting at once the wisdom and kindness of the great Legislator! Every word of God is pure in itself, and of great importance to us. He who cannot derive instruction from the chapter before him, and be led by a proper consideration of its contents to adore the wisdom and goodness of God, must have either a very stupid or a very vitiated mind. 2. In all these ordinances we may plainly see that God has purity of heart continually in view - that the soul may be holy, he cuts off the occasions of sin; and that men may be obliged to keep within due bounds, and possess their vessels in sanctification and honor, he hedges up their way with briars and thorns, and renders transgression painful, shameful, and expensive. 3. Preventing grace is not less necessary than that which saves and which preserves. These three chapters, avoided and neglected by most, contain lessons of instruction for all; and though many things contained in them belong exclusively to the Jewish people as to the letter, yet in th…

Thus shall ye separate the children of Israel from their uncleanness--The divine wisdom was manifested in inspiring the Israelites with a profound reverence for holy things; and nothing was more suited to this purpose than to debar from the tabernacle all who were polluted by any kind of uncleanness, ceremonial as well as natural, mental as well as physical. The better to mark out that people as His family, His servants and priests, dwelling in the camp as in a holy place, consecrated by His presence and His tabernacle, He required of them complete purity, and did not allow them to come before Him when defiled, even by involuntary or secret impurities, as a want of respect due to His majesty. And when we bear in mind that God was training a people to live in His presence in some measure as priests devoted to His service, we shall not consider these rules for the maintenance of personal purity either too stringent or too minute (Th1 4:4). Next: Leviticus Chapter 16

And of her that is sick of her flowers,.... Her monthly courses, for these are a sickness, Lev 20:18; and make a woman languid and faint, as the word is rendered, Lam 1:13; or to be in pain (n), as some render it here; and pains are reckoned among the signs of them by the Misnic doctors (o): and of him that hath an issue, of the man, and of the woman; of both, whether the one or the other: and of him that lieth with her that is unclean; though her own husband. (n) "et dolentis", Montanus. (o) Misn. Niddah, c. 9. sect. 8. Next: Leviticus Chapter 16

The Uncleanness of Secretions. - These include (1) a running issue from a man (Lev 15:2-15); (2) involuntary emission of seed (Lev 15:16, Lev 15:17), and the emission of seed in sexual intercourse (Lev 15:18); (3) the monthly period of a woman (Lev 15:19-24); (4) a diseased issue of blood from a woman (Lev 15:25-30). They consist, therefore, of two diseased and two natural secretions from the organs of generation.

In this chapter we have laws concerning other ceremonial uncleannesses contracted either by bodily disease like that of the leper, or some natural incidents, and this either, I. In men (v. 1-18). Or, II. In women (Lev 15:19-33). We need not be at all curious in explaining these antiquated laws, it is enough if we observe the general intention; but we have need to be very cautious lest sin take occasion by the commandment to become more exceedingly sinful; and exceedingly sinful it is when lust is kindled by sparks of fire from God's altar. The case is bad with the soul when it is putrefied by that which should purify it.