וְלָקַחְתָּ֣ אֶת־הַמַּרְצֵ֗עַ וְנָתַתָּ֤ה בְאָזְנוֹ֙ וּבַדֶּ֔לֶת וְהָיָ֥ה לְךָ֖ עֶ֣בֶד עוֹלָ֑ם וְאַ֥ף לַאֲמָתְךָ֖ תַּעֲשֶׂה־כֵּֽן׃
then thou shalt take an awl, and thrust it through his ear and into the door, and he shall be thy bondman for ever. And also unto thy bondwoman thou shalt do likewise.
Targum Jonathan on Deuteronomy
then thou shalt take an awl, and bore (or apply) it through his ear, and that to the door of the house of judgment, and he shall be thy serving servant until the Jubilee. And for thy handmaid also thou shalt write a certificate of release, and give it to her.