God spoke to Moses and said that this one more plague would bend Pharaoh’s will and he would not only let them go but would “drive you out from here completely.” After all that Pharaoh had suffered and still refused to heed the word of God this was a massive turnabout.
Not only that but the Egyptians were going to be so glad to be rid of the Israelite people that they would also pay them to leave. The statement that “Moses himself was greatly esteemed in the land of Egypt,” shows us his growing reputation among the people. Pharaoh himself would have to finally accept that as well.
This last plague not only arouses horror but has significance greater than just the suffering it causes. In ancient religions, the firstborn of man and beast was the property of the gods. Egypt had hundreds of gods and not one of them would be able to protect his particular property.
The final words of Moses to Pharaoh issued the warning of this last plague and when Moses had spoken the words God had given him “he went out from Pharaoh in hot anger.”
The final warning Moses spoke to Pharaoh included a graphic description of the predicted departure of the Israelites from Egypt. To underscore Moses’ words that “you may understand how the LORD makes a distinction between Egypt and Israel,” he makes two remarkable predictions. Moses first states “against any of the sons of Israel a dog will not even bark.” The Egyptian people were going to be so glad to be rid of the Israelites that not even their dogs would growl as they went out. Secondly Moses told Pharaoh that “All these your servants will come down to me and bow themselves before me,” in submission before Moses and his God and beg them to leave the land. What a contrast this is to the arrogant king who said that he would never let them go.
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