Pharoah Will Refuse To Let Israel Go

Exodus 7:1-6
 
1  And the LORD said unto Moses, See, I have made thee a god to Pharaoh: and Aaron thy brother shall be thy prophet. 
2  Thou shalt speak all that I command thee: and Aaron thy brother shall speak unto Pharaoh, that he send the children of Israel out of his land. 
3  And I will harden Pharaoh's heart, and multiply my signs and my wonders in the land of Egypt. 
4  But Pharaoh shall not hearken unto you, that I may lay my hand upon Egypt, and bring forth mine armies, and my people the children of Israel, out of the land of Egypt by great judgments. 
5  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. 
6  And Moses and Aaron did as the LORD commanded them, so did they.