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.).