And the Lord said unto Moses, Yet will I bring one plague more upon pharaoh and upon Egypt; afterwards he will let you go hence. When he shall let you go, he shall surely thrust you out hence altogether. The plague which the Lord had in mind was to be a final blow of such severity as to cause Pharaoh not only to dismiss the children of Israel, but even to drive them out.
Related Commentaries of Exodus 11:1
Exodus 11:1
1 And the LORD said unto Moses, Yet will I bring one plague more upon Pharaoh, and upon Egypt; afterwards he will let you go hence: when he shall let you go, he shall surely thrust you out hence altogether.