Jeremiah 34:9 (KJV)
That every man should let his manservant and every man his maidservant being an Hebrew or an Hebrewess go free that none should serve himself of them to wit of a Jew his brother
That every man should let his manservant and every man his maidservant being an Hebrew or an Hebrewess go free that none should serve himself of them to wit of a Jew his brother