Ye have seen all that the Lord did Some of them had seen, when they were young, the plagues which God had brought upon Pharaoh and his people, in order to accomplish their deliverance; and others from them had understood these things, which is often termed seeing, both in the Scriptures and elsewhere.
Related Commentaries of Deuteronomy 29:2
Deuteronomy 29:2
2 And Moses called unto all Israel, and said unto them, Ye have seen all that the LORD did before your eyes in the land of Egypt unto Pharaoh, and unto all his servants, and unto all his land;