Please turn over to I Peter 1, verse 15. What sets the saints apart? Our English word saint derives from the Latin and means sacred or holy one. It is used to translate biblical Hebrew and Greek words meaning sacred or holy one. Now we have an obligation to work hard to be holy in how we live and think and reason and discern. Of course, ultimately it is God who accomplishes it. But we certainly have to be submissive to Him.
No single synonym fully captures what it means to be holy. In a general sense, holy means clean, without blame or blemish, irreproachable, and set apart as from the world.