In the view and very presence of God something must change. It seems that the very nature of God demands that you cannot remain the same after you have come in contact with the one who created you. In Ex. 3:5 Moses was commanded to take off his shoes when he approached the "holy" burning bush. If Moses was allowed to remain as he was and yet still approach the bush he would never connect this event being any different. In the pretense of God Isaac became Israel and when Abram's faith accounted him faithful he became Abraham. When people came in contact with Jesus or his apostles they were forever changed some for the worse and others for the better. In Corinthians Paul calls Christ a fragrance, for some it will be bitter and for others it will be sweet. Holiness is not a thing you can touch, never was. Holiness is a purpose given to things.