In Genesis, God made a covenant with Abraham, Isaac and Jacob concerning the state of them and their descendants. The time had come for him to rescue the Israelites from Egypt and the Lord told Moses that he saw that the Israelites were suffering at the hands of the Egyptians and would come to rescue them. When Moses objected that neither Pharaoh nor his own people would support him, God let Moses know that He knew Pharaoh's heart would harden against him, so God could show His power to the Egyptians by raining down the ten plagues against them. God used the ten plagues for an outward physical consequence of inward moral conditions of the Egyptians because the plagues revealed that Moses was a good servant of God and that God was all powerful
