TSK
Treasury of Scripture Knowledge references in ASV.
And I will set apart in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end thou mayest know that I am Jehovah in the midst of the earth.
And the blood shall be to you for a token upon the houses where ye are: and when I see the blood, I will pass over you, and there shall no plague be upon you to destroy you, when I smite the land of Egypt.
Then shall ye return and discern between the righteous and the wicked, between him that serveth God and him that serveth him not.