The Ear of Servants Who Refused to Leave Their Masters, Bored to The
Source: TTT
Exodus 21:6
then his master is to bring him before the judges. And he shall take him to the door or doorpost and pierce his ear with an awl. Then he shall serve his master for life.
Deuteronomy 15:17
then take an awl and pierce it through his ear into the door, and he will become your servant for life. And treat your maidservant the same way.