{The tombs which appear not} (	a mn(886e)eia ta ad(886c)a). These
hidden graves would give ceremonial defilement for seven days
( Nu 19:16 ). Hence they were usually whitewashed as a warning.
So in  Mt 23:27  the Pharisees are called "whited sepulchres."
Men do not know how rotten they are. The word ad(886c)os (a
privative and d(886c)os, apparent or plain) occurs in the N.T. only
here and  1Co 14:8 , though an old and common word. {Here men
walking around} (peripatountes) walk over the tombs without
knowing it. These three woes cut to the quick and evidently made
the Pharisees wince.