And the Egyptians shall know that I am the LORD, when I stretch forth mine hand upon Egypt, and bring out the children of Israel from among them.
The Egyptians will know God only when forced, their pride shields them like iron against His word until the plagues shatter that shield and compel them to feel what they refused to hear. This knowledge, wrung from them unwilling, was meant to teach Moses that God's power deserves our praise before we see it proved.
AI summary
God made Moses a god to Pharaoh, His representative with divine authority to demand obedience and inflict plagues, and gave him Aaron as prophet to denounce those plagues. Though Pharaoh would not listen, God promised the work would be done: Israel would be freed and the Egyptians forced to know Him.
AI summary
Commenting on Exodus 7:1-7
By the plagues, especially the destruction of the firstborn, the Egyptians will be obliged to acknowledge Jehovah, the one true God, and recognize His power when He stretches His hand to bring Israel out despite all their opposition.
AI summary