² tn Heb “This is the law of the disease.” Some English versions specify this as “skin disease” (e.g., NIV, NLT), but then have to add “and mildew” (NIV) or “and infectious mildew” (NLT) because a house would not be infected with a skin disease.

¹ sn This anthropomorphic expression concerns the power of God. The “hand of the Lord” is idiomatic for his power, what he is able to do. The question is rhetorical; it is affirming that his hand is not shortened, i.e., that his power is not limited. Moses should have known this, and so this is a rebuke for him at this point. God had provided the manna, among all the other powerful acts they had witnessed. Meat would be no problem. But the lack of faith by the people was infectious.

² sn The word צָרוּעַ (tsaruaʿ), although translated “leper,” does not primarily refer to leprosy proper (i.e., Hansen’s disease). The RSV and the NASB continued the KJV tradition of using “leper” and “leprosy.” More recent studies have concluded that the Hebrew word is a generic term covering all infectious skin diseases (including leprosy when that actually showed up). True leprosy was known and feared certainly by the time of Amos (ca. 760 b.c.). There is evidence that the disease was known in Egypt by 1500 b.c. So this term would include that disease in all probability. But in view of the diagnosis and healing described in Leviticus 13 and 14, the term must be broader. The whole basis for the laws of separation may be found in the book of Leviticus. The holiness of the Lord who dwelt among his people meant that a high standard was imposed on them for their living arrangements as well as access to the sanctuary. Anything that was corrupted, diseased, dying, or contaminated was simply not compatible with the holiness of God and was therefore excluded. This is not to say that it was treated as sin, or the afflicted as sinners. It simply was revealing—and safeguarding—the holiness of the Lord. It thus provided a revelation for all time that in the world to come nothing unclean will enter into the heavenly sanctuary. As the Apostle Paul says, we will all be changed from this corruptible body into one that is incorruptible (1 Cor 15:53). So while the laws of purity and holiness were practical for the immediate audience, they have far-reaching implications for theology. The purity regulations have been done away with in Christ—the problem is dealt with differently in the new covenant. There is no earthly temple, and so the separation laws are not in force. Wisdom would instruct someone with an infectious disease to isolate, however. But just because the procedure is fulfilled in Christ does not mean that believers today are fit for glory just as they are. On the contrary, they must be changed before going into his presence. In like manner the sacrifices have been done away in Christ—not what they covered. Sin is still sin, even though it is dealt with differently on this side of the cross. But the ritual and the regulations of the old covenant at Sinai have been fulfilled in Christ.

³ tn Heb “and behold its appearance is low (שָׁפָל, shafal) ‘from’ (comparative מִן, min, “lower than”) the skin.” Compare “deeper” in v. 3 above where, however, a different word is used (עָמֹק, ʿamoq), and see the note on “swelling” in v. 1 above (cf. J. E. Hartley, Leviticus [WBC], 192; note that, contrary to the MT, one Hebrew ms (Cairo Geniza) has עָמֹק in this verse as well as v. 4). The alternation of these two terms (i.e., “deeper” and “lower”) in vv. 25-26 below shows that they both refer to the same phenomenon. Some have argued that “this sore was lower than the surrounding skin” (J. Milgrom, Leviticus [AB], 1:773, 788), in which case “swelling” would be an inappropriate translation of שְׂאֵת (s^eʾet) in v. 19. It seems unlikely, however, that the surface of a “boil” would sink below the surface of the surrounding skin. The infectious pus etc. that makes up a boil normally causes swelling.

⁶ tn Heb “a mark [or stroke; or plague] of disease.” In some places in this context (vv. 2, 3) it could be translated “a contagious skin disease.” Although the Hebrew term צָרָעַת (tsaraʿat) rendered here “diseased” is translated in many English versions as “leprosy,” it does not refer to Hanson’s disease, which is the modern technical understanding of the term “leprosy” (HALOT 1057 s.v. צָרְעַת a). There has been much discussion of the proper meaning of the term and the disease(s) to which it may refer (see, e.g., J. Milgrom, Leviticus [AB], 1:774-76, 816-26; J. E. Hartley, Leviticus [WBC], 187-89; and the literature cited by them). The further description of the actual condition in the text suggests that the regulations are concerned with any kind of infectious diseases that are observable on the surface of the skin and, in addition to that, penetrate below the surface of the skin (vv. 3-4) or spread further across the surface of the skin (vv. 5-8). It is true that, in the OT, the term “disease” is often associated specifically with white “scaly” skin diseases that resemble the wasting away of the skin after death (see Milgrom who, in fact, translates “scale disease”; cf., e.g., Exod 4:6-7 and Num 12:9-12, esp. v. 12), but here it appears to be a broader term for any skin disease that penetrates deep or spreads far on the body. Scaly skin diseases would be included in this category, but also other types. Thus, a “swelling,” “scab,” or “bright spot” on the skin might be a symptom of disease, but not necessarily so. In this sense, “diseased” is a technical term. The term “infection” can apply to any “mark” on the skin whether it belongs to the category of “disease” or not (compare and contrast v. 3, where the “infection” is not “diseased,” with v. 4, where the “infection” is found to be “diseased”).