He speaketh this to the elders, Joshua 24:1, who were so, not only by power and dignity, but many of them by age; and there being now not sixty years past since those Egyptian plagues, it is very probable that a considerable number of those here present had seen those things in Egypt, and being not twenty years old, were exempted from that dreadful sentence of destruction, passed upon all who were then of more years standing, Num 14.
Related Commentaries of Joshua 24:7
Joshua 24:7
7 And when they cried unto the LORD, he put darkness between you and the Egyptians, and brought the sea upon them, and covered them; and your eyes have seen what I have done in Egypt: and ye dwelt in the wilderness a long season.