Deuteronomy 27:20

20 Cursed is (he) that sleepeth with his father's wife, and showeth the private(s) of his bed; and all the people shall say, Amen!

Deuteronomy 27:20 Meaning and Commentary

Deuteronomy 27:20

Cursed [be] he that lieth with his father's wife
As Reuben did, and which is forbidden ( Leviticus 18:8 ) ; because he uncovereth his father's skirt;
see ( Deuteronomy 22:30 ) ; and all the people shall say Amen;
the tribe of Reuben said this as well as the rest.

Deuteronomy 27:20 In-Context

18 Cursed is he that maketh a blind man to err in the way; and all the people shall say, Amen! (Cursed is anyone who leadeth a blind man astray; and all the people shall say, Amen!)

19 He is cursed that perverteth the doom of a comeling, of a fatherless, either motherless child, and of a widow; and all the people shall say, Amen! (Cursed is anyone who withholdeth justice, or their rights, from the newcomer, the fatherless or the motherless child, and the widow; and all the people shall say, Amen!)

20 Cursed is (he) that sleepeth with his father's wife, and showeth the private(s) of his bed; and all the people shall say, Amen!

21 Cursed is he that sleepeth with any beast; and all the people shall say, Amen!

22 Cursed is he that sleepeth with his sister, the daughter of his father, either of his mother; and all the people shall say, Amen!