Jesus predicts the destruction of the temple, Mar 13:1, Mar 13:2. His disciples inquire when this shall be, and what previous sign there shall be of this calamity, Mar 13:3, Mar 13:4; which questions he answers very solemnly and minutely, vv. 5-27; illustrates the whole by a parable, Mar 13:28, Mar 13:29; asserts the absolute certainty of the events, Mar 13:30, Mar 13:31; shows that the precise minute cannot be known by man, Mar 13:32; and inculcates the necessity of watchfulness and prayer, Mar 13:33-37.