'Sanctify' in the Bible

for I am the Lord your God and you are to sanctify yourselves and be holy because I am holy. You must not defile yourselves by any of the swarming things that creep on the ground,

"'You must sanctify yourselves and be holy, because I am the Lord your God.

You must sanctify him because he presents the food of your God. He must be holy to you because I, the Lord who sanctifies you all, am holy.