Exodus

Then Jacob said unto his household, and to all that were with him, Put away the strange gods that are among you, and be clean, and change your garments:

And said unto them, Ye are the chief of the fathers of the Levites: sanctify yourselves, both ye and your brethren, that ye may bring up the ark of the Lord God of Israel unto the place that I have prepared for it.

And the Lord said unto Moses, Go unto the people, and sanctify them to day and to morrow, and let them wash their clothes,

And he said, Peaceably: I am come to sacrifice unto the Lord: sanctify yourselves, and come with me to the sacrifice. And he sanctified Jesse and his sons, and called them to the sacrifice.

Them take, and purify thyself with them, and be at charges with them, that they may shave their heads: and all may know that those things, whereof they were informed concerning thee, are nothing; but that thou thyself also walkest orderly, and keepest the law.