Jeremiah 34:13-14

“Thus says the LORD God of Israel, ‘I made a covenant with your forefathers in the day that I brought them out of the land of Egypt, from the house of bondage, saying, “At the end of seven years each of you shall set free his Hebrew brother who has been sold to you and has served you six years, you shall send him out free from you; but your forefathers did not obey Me or incline their ear to Me.