incorruptible

Incapable of being bribed or morally corrupted; inflexibly just and upright.

Not subject to corruption or decay.

Let us run in the straight road the race that is incorruptible

A person whose body does not decompose after death, a sign of holiness.

One of an ancient religious sect of Alexandria, whose adherents believed that the body of Christ was incorruptible, and that he suffered hunger, thirst, and pain only in appearance.