God commands the people to split onto two mountains with six tribes on one and six on the other. One side answers amen to the blessings and one side answers amen to the curses. God then pronounces twelve curses.
“When you cross the Jordan, these shall stand on Mount Gerizim for the blessing… and these shall stand on Mount Ebal for the curse.”
אֵלֶּה יַעַמְדוּ לְבָרֵךְ אֶת־הָעָם עַל־הַר גְּרִזִים… וְאֵלֶּה יַעַמְדוּ עַל־הַקְּלָלָה בְּהַר עֵיבָל
(Deuteronomy 27:12–13)
Why these twelve curses? How are they related? One possible answer is that these curses given at the end of the wilderness journey correspond to the Ten Commandments which were given at the beginning. Some do match clearly—such as verse 15, which addresses idol worship:
“Cursed be anyone who makes a sculptured or molten image…”
אָרוּר הָאִישׁ אֲשֶׁר יַעֲשֶׂה פֶסֶל וּמַסֵּכָה
(Deuteronomy 27:15)
Verse 16, which prohibits insulting one’s parents:
“Cursed be one who insults his father or his mother.”
אָרוּר מַקְלֶה אָבִיו וְאִמּוֹ
(Deuteronomy 27:16)
And verse 24, which addresses murder:
“Cursed be one who strikes down his fellow in secret.”
אָרוּר מַכֵּה רֵעֵהוּ בַּסָּתֶר
(Deuteronomy 27:24)
Other curses are only partially related. Verses 20, 22, and 23 address forbidden sexual relationships as a parallel adultery:
“Cursed be one who lies with his father’s wife…”
אָרוּר שֹׁכֵב עִם־אֵשֶׁת אָבִיו (27:20)
“Cursed be one who lies with any animal.”
אָרוּר שֹׁכֵב עִם־כָּל־בְּהֵמָה (27:21)
“Cursed be one who lies with his sister…”
אָרוּר שֹׁכֵב עִם־אֲחֹתוֹ (27:22)
Verse 25, which condemns taking a bribe to kill an innocent person, could be connected to false testimony:
“Cursed be one who takes a bribe to strike down an innocent person.”
אָרוּר לֹקֵחַ שֹׁחַד לְהַכּוֹת נֶפֶשׁ דָּם נָקִי
(Deuteronomy 27:25)
However, several curses do not clearly correspond to the Ten Commandments at all: verse 17, moving a neighbor’s boundary marker:
אָרוּר מַסִּיג גְּבוּל רֵעֵהוּ (27:17)
Verse 18, placing a stumbling block before the blind:
אָרוּר מַשְׁגֶּה עִוֵּר בַּדָּרֶךְ (27:18)
Verse 19, subverting justice for the vulnerable:
אָרוּר מַטֶּה מִשְׁפַּט גֵּר יָתוֹם וְאַלְמָנָה (27:19)
And verse 26, a general curse for not upholding the Torah:
“Cursed be one who does not uphold the words of this Torah.”
אָרוּר אֲשֶׁר לֹא־יָקִים אֶת־דִּבְרֵי הַתּוֹרָה הַזֹּאת
(Deuteronomy 27:26)
Only seven of the curses clearly correspond—or even loosely correspond—to the Ten Commandments, while several commandments are not represented at all. So this theory does not work well.
Rashbam explains that all twelve curses share a single unifying characteristic: they are sins typically committed in secret. Because they often escape judicial punishment, the Torah invokes a public, communal curse. Even the two acts that could occur publicly—idolatry and murder—are explicitly framed in the text as occurring secretly.
Rav Samson Raphael Hirsch builds on this idea, explaining that these curses target people who present themselves publicly as righteous while acting immorally in private. A person may loudly proclaim concern for the orphan or widow, yet secretly exploit them. Tragically, later in the book of Kings, the people openly profess loyalty to God while secretly harboring idols behind closed doors.
Perhaps the simplest explanation is that Moshe selected these twelve curses because they represent the greatest hidden threats to a just society as the people enter the land. This may also explain why the ceremony is commanded only after crossing the Jordan. The people are divided by tribe so that no group can claim immunity from either God’s blessing or God’s judgment.