'Be Holy' in the Bible

and is divided.'so also the woman that is unmarried and the virgin is careful for the things of the Lord, that she may be holy both in body and in spirit: but she that is married is careful for the things of the world, how she may please her husband.

even as he chose us in him before the foundation of the world, that we should be holy and without blemish before him in love:

that he might present the church to himself a glorious church , not having spot or wrinkle or any such thing; but that it should be holy and without blemish.

because it is written, Ye shall be holy; for I am holy.