Again, God sent Moses and Aaron, instructing them to tell Pharaoh that if he refused to let the people go, the face of the earth would be covered with locusts, so that man would not be able to see the ground, and that these locusts would eat the residue of that which escaped from the hail; that they would eat every tree out of the field; that they would fill the houses of Pharaoh and the houses of all his servants, and the houses of all the Egyptians. Moses delivered the message, and went out from Pharaoh. Some of Pharaoh's servants entreated their master to let the children of Israel go. Pharaoh sent for Moses and Aaron and asked them, who wished to go into the wilderness to sacrifice. They replied that they wished to go with the young and old; with their sons and daughters, with flocks and herds. Pharaoh would not consent to this, but agreed that the men might go. There upon Pharaoh drove Moses and Aaron out of his sight. Then God told Moses to stretch forth his hand upon the land of Egypt for the locusts, that they might come up and eat every herb, even all that the hail had left. "And Moses stretched out his rod over the land of Egypt, and the Lord brought an East wind all that day and all that night; and and when it was morning the East wind brought the locusts; and they came up over all the land of Egypt and rested upon all the coasts covering the face of the whole earth, so that the land was darkened; and they ate every herb and all the fruit of the trees which the hail had left, and there remained not any green thing on the trees or in the herbs of the field throughout the land of Egypt." Pharaoh then called for Moses and Aaron in great haste, admitted that he had sinned against the Lord their God and against them, asked their forgiveness and requested them to intercede with God that he might take away the locusts. They went out from his presence and asked the Lord to drive the locusts away, "And the Lord made a strong west wind which took away the locusts, and cast them into the Red Sea so that there remained not one locust in all the coasts of Egypt." As soon as the locusts were gone, Pharaoh changed his mind, and, in the language of the sacred text, "the Lord hardened Pharaoh's heart so that he would not let the children of Israel go." The Lord then told Moses to stretch out his hand toward heaven that there might be darkness over the land of Egypt, "even darkness which might be felt." "And Moses stretched forth his hand toward heaven, and there was a thick darkness over the land of Egypt for three days during which time they saw not each other, neither arose any of the people from their places for three days; but the children of Israel had light in their dwellings." It strikes me that when the land of Egypt was covered with thick darkness--so thick that it could be felt, and when light was in the dwellings of the Israelites, there could have been no better time for the Hebrews to have left the country.