1. Sent as a Plague

   Upon the Egyptians, Exodus 9:23-34

   the Philistines, in battle with the children of Israel, 1 Samuel 7:10

2. Sent as a Judgment Isaiah 29:6

3. On Mount Sinai Exodus 19:16, Psalm 77:18, Hebrews 12:18, 19

4. A Sign of Divine Anger 1 Samuel 12:17, 18

5. A Manifestation of Divine Power Job 26:14, Psalm 77:18

6. Sons of Zebedee Called Sons Of Mark 3:17