'Be Holy' in the Bible

Ye shall be holy people unto me, and therefore shall ye eat no flesh that is torn of beasts in the field. But shall cast it to dogs."

And when Aaron saw that, he made an altar before it, and made a proclamation saying, "Tomorrow shall be holy day unto the LORD."

And take the anointing oil and anoint the habitation and all that is therein, and hallow it and all that belong thereto: that it may be holy.