Matthew 25:5

χρονίζοντος τ. ν.: no reason given for delay, a possibility in natural life, the point on which the spiritual lesson, “be ready,” hinges. ἐνύσταζαν, they nodded, aorist, because a transient state; ἐκάθευδον, and remained for some time in slumber, imperfect, because the state continuous. Carr (Camb. N. T.) cites Plato, Apol. Socr., as illustrating the discriminating use of the two verbs in reference to the two stages of sleep. πᾶσαι, all, sleep in the circumstances perfectly natural and, everything being ready, perfectly harmless.