Exodus 9:18 records God sending a severe hail plague on Egypt, a specific instance of the hail reserved for trouble mentioned here.

Exodus 9:24 describes the unprecedented hail with fire in Egypt, directly illustrating the destructive hail God reserves for judgment.

Joshua 10:11 shows God using hailstones to defeat Israel's enemies in battle, fulfilling the 'day of war' purpose stated here.

Isaiah 30:30 depicts God's judgment with hailstones and tempest, another example of hail as a weapon in divine wrath.

Ezekiel 13:11-13 uses great hailstones as a metaphor for God's judgment against false prophets, aligning with the reserved hail for trouble.

Revelation 16:21 portrays a final plague of enormous hail, a direct end-times fulfillment of the hail God reserves for judgment.

Exodus 9:23 records Moses calling down hail from heaven, another instance of God unleashing the hail stored for times of trouble.