Левит 15:13

When he was cleansed, i.e., recovered from his issue, he was to wait seven days with regard to his purification, and then wash his clothes and bathe his body in fresh water, and be clean. On the eighth day he was to bring two turtle-doves or young pigeons, in order that the priest might prepare one as a sin-offering and the other as a burnt-offering, and make an atonement for him before the Lord for his issue.

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.

15:13-15 In contrast to the man with a skin disease (see 13:46), a man with a bodily discharge was apparently allowed to live at home. He did not have to undergo the more elaborate cleansing ritual described in ch 14. He simply had to wait seven days after the discharge ceased, wash (15:13), and present the least expensive animal sacrifice of two birds—one as a sin offering and the other as a whole burnt offering.