Deuteronomy 15:12

Release of Debt Slaves

15:12 If your fellow Hebrew – whether male or female – is sold to you and serves you for six years, then in the seventh year you must let that servant go free.

Deuteronomy 15:16

15:16 However, if the servant says to you, “I do not want to leave you,” because he loves you and your household, since he is well off with you,

Deuteronomy 23:21

23:21 When you make a vow to the Lord your God you must not delay in fulfilling it, for otherwise he will surely hold you accountable as a sinner.