Numbers 13:22, 28, 33

And they went up through the South and came to Hebron; Ahiman, Sheshai, and Talmai, the descendants of Anak, were there. (Now Hebron was built seven years before Zoan in Egypt.)

Nevertheless the people who dwell in the land are strong; the cities are fortified and very large; moreover we saw the descendants of Anak there.

There we saw the giants (the descendants of Anak came from the giants); and we were like grasshoppers in our own sight, and so we were in their sight.”