'Purify Yourselves' in the Bible

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

“Tell the people: Purify yourselves in readiness for tomorrow, and you will eat meat because you cried before the Lord: ‘Who will feed us meat? We really had it good in Egypt.’ The Lord will give you meat and you will eat.

And encamp ye without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify yourselves on the third day and on the seventh day, ye and your captives.

And as to every garment, and all that is made of skin, and all work of goats hair , and all things made of wood, ye shall purify yourselves.

And Joshua said unto the people, "Purify yourselves, for tomorrow the LORD shall show wonders among you."

And he will say to them, Ye heads of the fathers to the Levites: ye shall purify yourselves, ye and your brethren, and bring ye up the ark of Jehovah the God of Israel to that I prepared for it.

and said unto them, "Hear me ye Levites: purify yourselves and hallow the house of the LORD God of your fathers, and bring out the filthiness out of the holy place.

Leave, leave, go out from there!Do not touch anything unclean;go out from her, purify yourselves,you who carry the vessels of the Lord.