Deuteronomy 14:2

GOD'S PEOPLE MUST NOT DISFIGURE THEMSELVES IN MOURNING. (Deu 14:1-2) ye shall not cut yourselves . . . for the dead--It was a common practice of idolaters, both on ceremonious occasions of their worship (Kg1 18:28), and at funerals (compare Jer 16:6; Jer 41:5), to make ghastly incisions on their faces and other parts of their persons with their finger nails or sharp instruments. The making a large bare space between the eyebrows was another heathen custom in honor of the dead (see on Lev 19:27-28; Lev 21:5). Such indecorous and degrading usages, being extravagant and unnatural expressions of hopeless sorrow (Th1 4:13), were to be carefully avoided by the Israelites, as derogatory to the character, and inconsistent with the position, of those who were the people of God [Deu 14:2].

For thou art an holy people unto the Lord thy God,.... Set apart by him from all other people, and devoted to his worship and service, and many of them were sanctified and made holy in a special and spiritual sense; and therefore should not conform to the customs of Gentiles, whether in their extravagant mourning for the dead, or in their religious services; see Deu 7:6, and the Lord hath chosen thee to be a peculiar people, above all the nations that are upon the earth; to be his peculiar treasure, to be his peculiar servants and worshippers, to enjoy peculiar blessings and privileges, and behave in a peculiar manner different from all other people; and have no connection with them, especially in things sacred; and, in order to keep them a distinct peculiar people from all others, a peculiar diet was appointed them, that so being prohibited to eat such things as others did, they might be kept out of their company and conversation, and so from being drawn into their idolatrous practices; the rules concerning which follow; see Deu 7:6.

The Israelites were not only to suffer no idolatry to rise up in their midst, but in all their walk of life to show themselves as a holy nation of the Lord; and neither to disfigure their bodies by passionate expressions of sorrow for the dead (Deu 14:1 and Deu 14:2), nor to defile themselves by unclean food (vv. 3-21). Both of these were opposed to their calling. To bring this to their mind, Moses introduces the laws which follow with the words, "ye are children to the Lord your God." The divine sonship of Israel was founded upon its election and calling as the holy nation of Jehovah, which is regarded in the Old Testament not as generation by the Spirit of God, but simply as an adoption springing out of the free love of God, as the manifestation of paternal love on the part of Jehovah to Israel, which binds the son to obedience, reverence, and childlike trust towards a Creator and Father, who would train it up into a holy people. The laws in Deu 14:1 are simply a repetition of Lev 19:28 and Lev 21:5. למת, with reference to, or on account of, a dead person, is more expressive than לנפשׁ (for a soul) in Lev 19:28. The reason assigned for this command in Deu 14:2 (as in Deu 7:6) is simply an emphatic elucidation of the first clause of Deu 14:1. (On the substance of the verse, see Exo 19:5-6).

Moses in this chapter teaches them, I. To distinguish themselves from their neighbours by a singularity, 1. In their mourning (Deu 14:1, Deu 14:2). 2. In their meat (v. 3-21). II. To devote themselves unto God, and, in token of that, to give him his dues out of their estates, the yearly tithe, and that every third year, for the maintenance of their religious feasts, the Levites, and the poor (Deu 14:22, etc.).

14:2 The fundamental Hebrew meaning of holy focuses on separation of a person or thing for a particular function or use. A derivative meaning is “pure” or “morally and spiritually upright.”