Cursed be he that lieth with his mother in law. And all the people shall say, Amen.

DEUTERONOMY 27:23KJV
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What does Deuteronomy 27:23 mean?

Deuteronomy 27:23 states that anyone who has sexual relations with his mother-in-law is under a curse, and the gathered people are to affirm this by saying “Amen.” The verse is part of a series of curses pronounced to warn against specific forbidden behaviors as Israel prepares to enter the Promised Land.

This verse is spoken by the Levites to all Israel as part of a public ceremony on Mount Ebal, where the people agree to uphold God’s laws. The focus here is on a sexual relationship that was considered a serious violation of family boundaries and community holiness. The people’s response of “Amen” shows their agreement with the standard and the seriousness of the warning.

The Hebrew behind Deuteronomy 27:23

  • Cursed (אָרוּר, ’arur, H779): This word means “cursed” or “under a curse.” It signals a strong warning that the person who commits this act is set apart for judgment or misfortune, not just disapproval.
  • Lieth (שָׁכַב, shakav, H7901): This verb is often used in the Hebrew Bible for sexual relations. Its use here makes clear that the verse refers specifically to a sexual act, not just sharing a bed or living together.
  • Law (חָמוֹת, chamot, H2859): This word refers to a mother-in-law. The verse singles out this relationship, which was strictly forbidden in Israelite law.
  • People (עָם, ‘am, H5971): This word means “people” or “community.” The whole assembly is involved, showing that this is a communal standard, not just a private matter.
  • Say (אָמַר, ’amar, H559): This verb means “to say” or “to declare.” The people’s spoken response is an important part of affirming the law.
  • Amen (אָמֵן, amen, H543): This word means “so be it” or “truly.” The people’s “Amen” is a solemn agreement, not just a routine response.

Why Deuteronomy 27:23 matters

  • Deuteronomy 27:23 clarifies that certain sexual relationships were not just discouraged but placed under a curse, showing the seriousness with which these boundaries were treated in ancient Israel.
  • The verse highlights the communal nature of Israel’s covenant, as the people’s collective “Amen” makes everyone responsible for upholding these standards.
  • This curse is part of a larger list, helping to show which behaviors were considered especially damaging to the community’s moral and spiritual health.

Where else these words appear

“Amen” Hebrew H543 · used in 24 verses

  • Numbers 5:22 And this water that causeth the curse shall go into thy bowels, to make thy belly to swell, and thy thigh to rot: And the woman shall say, Amen, amen.
  • Deuteronomy 27:21 Cursed be he that lieth with any manner of beast. And all the people shall say, Amen.
  • Nehemiah 8:6 And Ezra blessed the LORD, the great God. And all the people answered, Amen, Amen, with lifting up their hands: and they bowed their heads, and worshipped the LORD with their faces to the ground.

“law” Hebrew H2859 · used in 32 verses

  • Genesis 34:9 And make ye marriages with us, and give your daughters unto us, and take our daughters unto you.
  • Exodus 18:14 And when Moses' father in law saw all that he did to the people, he said, What is this thing that thou doest to the people? why sittest thou thyself alone, and all the people stand by thee from morning unto even?
  • Judges 19:4 And his father in law, the damsel's father, retained him; and he abode with him three days: so they did eat and drink, and lodged there.

“Cursed” Hebrew H779 · used in 52 verses

  • Genesis 3:14 And the LORD God said unto the serpent, Because thou hast done this, thou art cursed above all cattle, and above every beast of the field; upon thy belly shalt thou go, and dust shalt thou eat all the days of thy life:
  • Numbers 24:9 He couched, he lay down as a lion, and as a great lion: who shall stir him up? Blessed is he that blesseth thee, and cursed is he that curseth thee.
  • Joshua 9:23 Now therefore ye are cursed, and there shall none of you be freed from being bondmen, and hewers of wood and drawers of water for the house of my God.