The Lord said to Moses, “If her father had only spit ¹  in her face, would she not have been disgraced for seven days? Shut her out from the camp seven days, and afterward she can be brought back in again.”

then his sister-in-law must approach him in view of the elders, remove his sandal from his foot, and spit in his face. ¹  She will then respond, “Thus may it be done to any man who does not maintain his brother’s family line!” ²