'Be Holy' in the Bible

All the days of the vow of his separation there shall no razor come upon his head; until the days be fulfilled, that he hath consecrated himself to Jehovah, he shall be holy; he shall let the locks of the hair of his head grow.

that ye may remember and do all my commandments, and be holy unto your God.

and put fire therein, and lay incense thereon before Jehovah to-morrow; and it shall be that the man whom Jehovah doth choose, he shall be holy. It is enough, ye sons of Levi!

As most holy shalt thou eat it: every male shall eat it; it shall be holy unto thee.