1 Chronicles 15:12

So kill the passover, and sanctify yourselves, and prepare your brethren, that they may do according to the word of the Lord by the hand of Moses.

And Moses went down from the mount unto the people, and sanctified the people; and they washed their clothes. And he said unto the people, Be ready against the third day: come not at your wives.

So the priests and the Levites sanctified themselves to bring up the ark of the Lord God of Israel.

Then they killed the passover on the fourteenth day of the second month: and the priests and the Levites were ashamed, and sanctified themselves, and brought in the burnt offerings into the house of the Lord.

I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.

And David made him houses in the city of David, and prepared a place for the ark of God, and pitched for it a tent.

And David gathered all Israel together to Jerusalem, to bring up the ark of the Lord unto his place, which he had prepared for it.

These likewise cast lots over against their brethren the sons of Aaron in the presence of David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, even the principal fathers over against their younger brethren.

These chief fathers of the Levites were chief throughout their generations; these dwelt at Jerusalem.

And he brought in the priests and the Levites, and gathered them together into the east street, And said unto them, Hear me, ye Levites, sanctify now yourselves, and sanctify the house of the Lord God of your fathers, and carry forth the filthiness out of the holy place.

And it came to pass, when the priests were come out of the holy place: (for all the priests that were present were sanctified, and did not then wait by course:

It shall be for the priests that are sanctified of the sons of Zadok; which have kept my charge, which went not astray when the children of Israel went astray, as the Levites went astray.

Sanctify them through thy truth: thy word is truth.

And they sung a new song, saying, Thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation; And hast made us unto our God kings and priests: and we shall reign on the earth.