'Be Holy' in the Bible

There is a difference too between a married and an unmarried woman. She who is unmarried concerns herself with the Lord's business--that she may be holy both in body and spirit; but the married woman concerns herself with the business of the world--how she shall please her husband.

even as, in His love, He chose us as His own in Christ before the creation of the world, that we might be holy and without blemish in His presence.

that He might present the Church to Himself a glorious bride, without spot or wrinkle or any other defect, but to be holy and unblemished.

but--in imitation of the holy One who has called you--you also must be holy in all your habits of life.

Because it stands written, "You are to be holy, because I am holy."