Numbers 13:28, 33

But the people who live in the land are strong, and the cities are fortified (walled) and very large; moreover, we saw there the descendants of Anak [people of great stature and courage].

There we saw the Nephilim (the sons of Anak are part of the Nephilim); and we were like grasshoppers in our own sight, and so we were in their sight.”