ISB ~ Luke 21 v25

sun … moon … stars:Heavenly disturbances figure in many OT prophecies that portray Yahweh destroying pagan kingdoms (Is 13:9-10; Ezek 32:7; Joel 2:10, 31). See note on Mk 13:24-25.

roaring of the sea:An image of foreign nations enraged and ready for battle.

• Isaiah uses this imagery for the nation God rouses to punish wayward Israel (Is 5:30). It also portrays the anger of God raging against his foes (Wis 5:22).