For one historian, the sanctioning of slavery was taking the attitude of those whom the prophet Isaiah denounced because they were saying: “Good is bad and bad is good. ” ​ — Isaiah 5: 20.
Menurut seorang sejarawan, menyetujui perbudakan berarti bersikap seperti orang - orang yang dikecam nabi Yesaya, karena mereka mengatakan, ” Kebaikan itu jahat dan kejahatan itu baik. ” ​ — Yesaya 5: ​ 20.