BIBLICAL BACKGROUND
Deut 11:29-30 Blessings and curses
When the Lord your God has brought you into the land that you are entering to occupy, you shall set the blessing on Mount Gerizim and the curse on Mount Ebal. 30 As you know, they are beyond the Jordan, some distance to the west, in the land of the Canaanites who live in the Arabah, opposite Gilgal, beside the oak of Moreh.
Deut 27:11-26 The curses on Mount Ebal
The same day Moses charged the people as follows: 12 When you have crossed over the Jordan, these shall stand on Mount Gerizim for the blessing of the people: Simeon, Levi, Judah, Issachar, Joseph, and Benjamin. 13 And these shall stand on Mount Ebal for the curse: Reuben, Gad, Asher, Zebulun, Dan, and Naphtali. 14 Then the Levites shall declare in a loud voice to all the Israelites:
15 "Cursed be anyone who makes an idol or casts an image, anything abhorrent to the Lord, the work of an artisan, and sets it up in secret." All the people shall respond, saying, "Amen!"
16 "Cursed be anyone who dishonors father or mother." All the people shall say, "Amen!"
17 "Cursed be anyone who moves a neighbor's boundary marker." All the people shall say, "Amen!"
18 "Cursed be anyone who misleads a blind person on the road." All the people shall say, "Amen!"
19 "Cursed be anyone who deprives the alien, the orphan, and the widow of justice." All the people shall say, "Amen!"
20 "Cursed be anyone who lies with his father's wife, because he has violated his father's rights." All the people shall say, "Amen!"
21"Cursed be anyone who lies with any animal." All the people shall say, "Amen!"
22 "Cursed be anyone who lies with his sister, whether the daughter of his father or the daughter of his mother." All the people shall say, "Amen!"
23 "Cursed be anyone who lies with his mother-in-law." All the people shall say, "Amen!"
24 "Cursed be anyone who strikes down a neighbor in secret." All the people shall say, "Amen!"
25 "Cursed be anyone who takes a bribe to shed innocent blood." All the people shall say, "Amen!"
26 "Cursed be anyone who does not uphold the words of this law by observing them." All the people shall say, "Amen!"
Josh 8:30-35 Joshua builts an altar on Mount Ebal
Then Joshua built on Mount Ebal an altar to the Lord, the God of Israel, 31 just as Moses the servant of the Lord had commanded the Israelites, as it is written in the book of the law of Moses, "an altar of unhewn stones, on which no iron tool has been used"; and they offered on it burnt offerings to the Lord, and sacrificed offerings of well-being.
And there, in the presence of the Israelites, Joshua wrote on the stones a copy of the law of Moses, which he had written. 33 All Israel, alien as well as citizen, with their elders and officers and their judges, stood on opposite sides of the ark in front of the levitical priests who carried the ark of the covenant of the Lord, half of them in front of Mount Gerizim and half of them in front of Mount Ebal, as Moses the servant of the Lord had commanded at the first, that they should bless the people of Israel. 34 And afterward he read all the words of the law, blessings and curses, according to all that is written in the book of the law. 35 There was not a word of all that Moses commanded that Joshua did not read before all the assembly of Israel, and the women, and the little ones, and the aliens who resided among them.