Luke 19:43-44

For a time [of siege] is coming when your enemies will put up a barricade [with pointed stakes] against you, and surround you [with armies] and hem you in on every side, [Is 29:3; Jer 6:6; Ezek 4:2] and they will level you to the ground, you [Jerusalem] and your children within you. They will not leave in you one stone on another, all because you did not [come progressively to] recognize [from observation and personal experience] the time of your visitation [when God was gracious toward you and offered you salvation].”