Exodus 11:1-3

That is a promise given to the Israelitish people through Moses, that when these slave people were free from their captivity to Egypt they were going to leave Egypt a wealthy nation. What I want you to see here is that the Egyptians didn't like the Israelites at all. In one sense it's very easy for them to blame the Israelites for all of the troubles that came upon them because it was the Israelites' God that was doing all this. They couldn't strike that God, but they could sure hate and strike the Israelites. Their head man, Pharaoh, was a pretty recalcitrant person. He was stubborn and hardheaded and represented the mind, the thinking, of the overwhelming majority of the Egyptian people. But here is God saying, "I'm going to give you favor to this whole nation by these people who hate you right now." So God is going to affect the thinking and the attitude of an entire nation.

That is in there to show you and me they were doing something that they ordinarily would not have done. But God pushed the button in their mind, and made them (the Egyptians) give of their wealth freely.