"Every seventh year each of you must free any other Hebrews who have sold themselves to you. After they have served you six years, you must let them go free.' Your ancestors, however, did not listen to me or pay attention to me."
NIV
At the end of seven years you shall let every man his brother who is a Hebrew go free who has sold himself or has been sold to you and has served you six years; but your fathers did not listen to and obey Me or incline their ear [submitting and consenting to Me]. [Deut. 15:12.]AMP
At the end of seven years let ye go every man his brother an Hebrew, which hath been sold unto thee; and when he hath served thee six years, thou shalt let him go free from thee: but your fathers hearkened not unto me, neither inclined their ear.
KJV