Reference

Exodus 7:14-21
The Ten Strikes

The ten plagues and seven phrases of the plagues reveal Yahweh as the Ruler and Redeemer of His perfect and complete world. The first three plagues reveal Yahweh exists. The second three plagues reveal Yahweh is active in the laws of nature and in the lives of His people. The third three plagues reveal Yahweh is a God with absolute power.