JMNT(i)
23 Now may the God of peace Himself (or: Yet the very God who is peace and harmony [= shalom] can) set you folks apart [being] completely whole (or: wholly perfect; entirely mature; wholly finished and at the goal), and may your whole allotment (= every part) – the spirit, the soul and the body – be kept (guarded; watched over) blameless (without fault) within, and in union with, the presence of our Lord (Master; Owner), Jesus Christ.