Deuteronomy 11:7

but your eyes have seen every great act of the LORD which He did.

Surrounding context

11:6 and what He did to Dathan and Abiram the sons of Eliab, the son of Reuben: how the earth opened its mouth and swallowed them up, their households, their tents, and all the substance that was in their possession, in the midst of all Israel--

11:7 but your eyes have seen every great act of the LORD which He did.

11:8 "Therefore you shall keep every commandment which I command you today, that you may be strong, and go in and possess the land which you cross over to possess,

Translation and sources