“ And ye shall keep my statutes, and do them: I am the LORD which sanctify you. And Moses called all Israel, and said unto them, Hear, O Israel, the statutes and judgments which I speak in your ears this day, that ye may learn them, and keep, and do them. The LORD our God made a covenant with us in Horeb. Moreover also I gave them my sabbaths, to be a sign between me and them, that they might know that I am the LORD that sanctify them. ”