Deuteronomy 25:10 (KJV)

Then the elders of his city shall call him, and speak unto him: and if he stand to it, and say, I like not to take her;

Then shall his brother’s wife come unto him in the presence of the elders, and loose his shoe from off his foot, and spit in his face, and shall answer and say, So shall it be done unto that man that will not build up his brother’s house.

And his name shall be called in Israel, The house of him that hath his shoe loosed.

When men strive together one with another, and the wife of the one draweth near for to deliver her husband out of the hand of him that smiteth him, and putteth forth her hand, and taketh him by the secrets:

Then thou shalt cut off her hand, thine eye shall not pity her.