We have here the law concerning the ceremonial uncleanness that was contracted by running issues in men. It is called in the margin (Lev 15:2) the running of the reins: a very grievous and loathsome disease, which was, usually the effect and consequent of wantonness and uncleanness, and a dissolute course of life, filling men's bones with the sins of their youth, and leaving them to mourn at the last, when all the pleasures of their wickedness have vanished, and nothing remains but the pain and anguish of a rotten carcase and a wounded conscience. And what fruit has the sinner then of those things whereof he has so much reason to be ashamed? Rom 6:21. As modesty is an ornament of grace to the head and chains about the neck, so chastity is health to the navel and marrow to the bones; but uncleanness is a wound and dishonour, the consumption of the flesh and the body, and a sin which is often its own punishment more than any other. It was also sometimes inflicted by the righteous hand of God for other sins, as appears by David's imprecation of a curse upon the family of Joab, for the murder of Abner. Sa2 3:29, Let there not fail from the house of Joab one that hath an issue, or is a leper. A vile disease for vile deserts. Now whoever had this disease upon him, 1. He was himself unclean, Lev 15:2. He must not dare to come near the sanctuary, it was at his peril if he did, nor might he eat of the holy things. This signified the filthiness of sin, and of all the productions of our corrupt nature, which render us odious to God's holiness, and utterly unfit for communion with him. Out of a pure heart well kept are the issues of life (Pro 4:23), but out of an unclean heart comes that which is defiling, Mat 12:34, Mat 12:35. 2. He made every person and thing unclean that he touched, or that touched him, Lev 15:4-12. His bed, and his chair, and his saddle, and every thing that belonged to him, could not be touched without a ceremonial uncleanness contracted, which a man must remain conscious to himself of till sunset, and from which he could not be cleansed without washing his clothes, and bathing his flesh in water. This signified the contagion of sin, the danger we are in of being polluted by conversing with those that are polluted, and the need we have with the utmost circumspection to save ourselves from this untoward generation. 3. When he was cured of the disease, yet he could not be cleansed from the pollution without a sacrifice, for which he was to prepare himself by seven days' expectation after he was perfectly clear from his distemper, and by bathing in spring water, Lev 15:13-15. This signified the great gospel duties of faith and repentance, and the great gospel privileges of the application of Christ's blood to our souls for our justification and his grace for our sanctification. God has promised to sprinkle clean water upon us, and to cleanse us from all our filthiness, and has appointed us by repentance to wash and make ourselves clean: he has also provided a sacrifice of atonement, and requires us by faith to interest ourselves in that sacrifice; for it is the blood of Christ his Son that cleanses us from all sin, and by which atonement is made for us, that we may have admission into God's presence and may partake of his favour.

When any man hath a running issue - The cases of natural uncleanness, both of men and women, mentioned in this chapter, taken in a theological point of view, are not of such importance to us as to render a particular description necessary, the letter of the text being, in general, plain enough. The disease mentioned in the former part of this chapter appears to some to have been either the consequence of a very bad infection, or of some criminal indulgence; for they find that it might be communicated in a variety of ways, which they imagine are here distinctly specified. On this ground the person was declared unclean, and all commerce and connection with him strictly forbidden. The Septuagint version renders הזב hazzab, the man with the issue, by ὁ γονορῥυης, the man with a gonorrhea, no less than nine times in this chapter; and that it means what in the present day is commonly understood by that disorder, taken not only in its mild but in its worst sense, they think there is little room to doubt. Hence they infer that a disease which is supposed to be comparatively recent in Europe, has existed almost from time immemorial in the Asiatic countries; that it ever has been, in certain measures, what it is now; and that it ever must be the effect of sensual indulgence, and illicit and extravagant intercourse between the sexes. The disgraceful disorder referred to here is a foul blot which the justice of God in the course of providence has made in general the inseparable consequent of these criminal indulgences, and serves in some measure to correct and restrain the vice itself. In countries where public prostitution was permitted, where it was even a religious ceremony among those who were idolaters, this disease must necessarily have been frequent and prevalent. When the pollutions and libertinism of former times are considered, it seems rather strange that medical men should have adopted the opinion, and consumed so much time in endeavoring to prove it, viz., that the disease is modern. It must have existed, in certain measures, ever since prostitution prevailed in the world; and this has been in every nation of the earth from its earliest era. That the Israelites might have received it from the Egyptians, and that it must, through the Baal-peor and Ashteroth abominations which they learned and practiced, have prevailed among the Moabites, etc., there can be little reason to doubt. Supposing this disease to be at all hinted at here, the laws and ordinances enjoined were at once wisely and graciously calculated to remove and prevent it. By contact, contagion of every kind is readily communicated; and to keep the whole from the diseased must be essential to the check and eradication of a contagious disorder. This was the wise and grand object of this enlightened Legislator in the ordinances which he lays down in this chapter. I grant, however, that it was probably of a milder kind in ancient times; that it has gained strength and virulence by continuance; and that, associated with some foreign causes, it became greatly exacerbated in Europe about 1493, the time in which some have supposed it first began to exist, though there are strong evidences of it in this country ever since the eleventh century.

And if he that hath the issue spit upon him that is clean,.... Not purposely, which is not usual for a man to do, and whenever it is done, nothing is more affronting; but accidentally, when, as Aben Ezra expresses it, he spreads his spittle, and it falls upon a clean person; and under this, as Gersom observes, is comprehended whatever is brought up by coughing, as phlegm, or flows from the nose, or is pressed out of it; and so Maimonides (z): and this may denote all corrupt communication which proceeds out of the mouth of evil men, whether immoral or heretical, which not only defiles the man himself, but those he converses with; for evil communication corrupts good manners:

then he shall wash his clothes, &c. as in the foregoing instances. See Gill on Lev 15:5.

(z) Hilchot Metame Mishcab, c. 1. sect. 16.