The time had come when God would answer the prayers of His oppressed people, and would bring them from Egypt with such mighty displays of His power that the Egyptians would be compelled to acknowledge that the God of the Hebrews, whom they had despised, was above all gods. He would now punish them for their idolatry and for their proud boasting of the mercies bestowed upon them by their senseless gods. God would glorify His own name, that other nations might hear of His power and tremble at His mighty acts, and that His people, by witnessing His miraculous works, should fully turn from their idolatry to render to Him pure worship. (SR 115.1) MC VC

In the deliverance of Israel from Egypt, God plainly showed His distinguished mercy to His people before all the Egyptians. God saw fit to execute His judgments upon Pharaoh, that he might know by sad experience, since he would not otherwise be convinced, that His power was superior to all others. That His name might be declared throughout all the earth, He would give exemplary and demonstrative proof to all nations of His divine power and justice. It was the design of God that these exhibitions of power should strengthen the faith of His people, and that their posterity should steadfastly worship Him alone who had wrought such merciful wonders in their behalf. (SR 115.2) MC VC

Moses declared to Pharaoh, after he required the people to make brick without straw, that God, whom he pretended not to know, would compel him to yield to His claims and acknowledge His authority as supreme Ruler. (SR 115.3) MC VC