Pharaoh's hardened heart caused him to continually refuse to listen to Moses and Aaron's request to let the Children of Israel leave Egypt to serve YeHoVaH. As a consequence of Pharaoh not listening to YeHoVaH's servants, Moses and Aaron, YeHoVaH turns His focus to Egypt's economy. Pharaoh's repeated rejection of YeHoVaH's single command of letting His people go, and Pharaoh turning a blind eye to the miracles, signs, and wonders, brought the people of Egypt's economy to a standstill.&n...