With this chapter begins another subdivision of the law. Hitherto we have had before us only sacrificial worship and matters of merely ceremonial law. The law of holy living contained in the following chapters (xvii.-xx.), on the other hand, has to do for the most part with matters rather ethical than ceremonial, and consists chiefly of precepts designed to regulate morally the ordinary engagements and relationships of every-day life. The fundamental thought of the four chapters is that which is expressed, _e.g._, in xviii. 3: Israel, redeemed by Jehovah, is called to be a holy people; and this holiness is to be manifested in a total separation from the ways of the heathen. This principle is enforced by various specific commands and prohibitions, which naturally have particular regard to the special conditions under which Israel was placed, as a holy nation consecrated to Jehovah, the one, true God, but living in the midst of nations of idolaters. The whole of chapter xvii., with the exception of vv. 8, 9, has to do with the application of this law of holy living to the use even of lawful food. At first thought, the injunctions of the chapter might seem to belong rather to ceremonial than to moral law; but closer observation will show that all the injunctions here given have direct reference to the avoidance of idolatry, especially as connected with the preparation and use of food. It was not enough that the true Israelite should abstain from food prohibited by God, as in chap. xii.; he must also use that which was permitted in a way well-pleasing to God, carefully shunning even the appearance of any complicity with surrounding idolatry, or fellowship with the heathen in their unholy fashions and customs. Even so for the Christian: it is not enough that he abstain from what is expressly forbidden; even in his use of lawful food, he must so use it that it shall be to him a means of grace, in helping him to maintain an uninterrupted walk with God. In vv. 1-7 is given the law to regulate the use of such clean animals for food as could be offered to God in sacrifice; in vv. 10-16, of such as, although permitted for food, were not allowed for sacrifice. The directions regarding the first class may be summed up in this: all such animals were to be treated as peace-offerings. No private person in Israel was to slaughter any such animal anywhere in the camp or out of it, except at the door of the tent of meeting. Thither they were to be brought "unto the priest," and offered for peace-offerings (ver. 5); the blood must be sprinkled on the altar of burnt-offering; the fat parts burnt "for a sweet savour unto the Lord" (ver. 6); and then only, the priest having first taken his appointed portions, the remainder might now be eaten by the Israelite, as given back to him by God, in peaceful fellowship with Him.