These shall stand upon Mount Gerizim to bless the people - Instead of upon Mount, etc., we may translate by, as the particle על al is sometimes used; for we do not find that the tribes did stand on either mount, for in Joshua 8:33, when this direction was reduced to practice, we find the people did not stand on the mountains, but over against them on the plain. See the observations at the end of this chapter, Deuteronomy 27:26 (note).

mount Ebal

Deuteronomy 27:4 Therefore it shall be when you be gone over Jordan, that you shall set up these stones, which I command you this day, in mount Ebal...

Deuteronomy 11:29 And it shall come to pass, when the LORD your God has brought you in to the land where you go to possess it...

Joshua 8:33 And all Israel, and their elders, and officers, and their judges...

to curse [heb] for a cursing
Reuben

Genesis 29:32 And Leah conceived, and bore a son, and she called his name Reuben: for she said, Surely the LORD has looked on my affliction...

Genesis 30:6-13,20 And Rachel said, God has judged me, and has also heard my voice, and has given me a son: therefore called she his name Dan...

Genesis 49:3,4 Reuben, you are my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power...

Gilgal, in Deuteronomy 11:30 what the Place Was.
That which is said by Moses, that "Gerizim and Ebal were over-against Gilgal," Deuteronomy 11:30, is so obscure, that it is rendered into contrary significations by interpreters. Some take it in that sense, as if it were near to Gilgal: some far off from Gilgal: the Targumists read, "before Gilgal": while, as I think, they do not touch the difficulty; which lies not so much in the signification of the word Mul, as in the ambiguity of the word Gilgal. These do all seem to understand that Gilgal which …
John Lightfoot—From the Talmud and Hebraica