Exodus 21:6 KJV
Then his master shall bring him unto the judges; he shall also bring him to the door, or unto the door post; and his master shall bore his ear through with an aul; and he shall serve him for ever.
Exodus 21:6, King James Version
In context
5 And if the servant shall plainly say, I love my master, my wife, and my children; I will not go out free:
6 Then his master shall bring him unto the judges; he shall also bring him to the door, or unto the door post; and his master shall bore his ear through with an aul; and he shall serve him for ever.
7 And if a man sell his daughter to be a maidservant, she shall not go out as the menservants do.