"Harass the Midianites, and strike them;

for they harass you with their tricks, the tricks with which they have deceived you in the matter [of the Baal] of Peor, and in the matter of Cozbi, the daughter of the leader of Midian, their sister, who was killed on the day of the plague because [of the Baal] of Peor.”

"But if you do not drive out the inhabitants of the land from before you, then those you let remain of them will be as pricks in your eyes and as thorns in your sides, and they will harass you in the land in which you dwell.