Luke 21.  In this eschatological sermon Jesus mixes some predictions of  immanent “days of vengeance” upon Jerusalem (22) with a description of the long age preceding his second coming (8-9).  He does this intentionally because the two events are related. Specifically: 1) the generation that Jesus spoke to would see all the signs he mentioned, but would still not be ready for the days of vengeance, 2) true believers would be hated by all during this generation, and put to death, in spite of the fact that the Holy Spirit is with them. 3) the generation will serve as a sign that the kingdom of God is near (31), so believers should remain diligent during the long age before the second coming, because it could come at any time.

LORD, keep us diligent, ready for your return.