Numbers 13:22, 28, 33

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

Howbeit the people that dwell in the land are strong, and the cities are fortified, and very great: and moreover we saw the children of Anak there.

And there we saw the Nephilim, the sons of Anak, who come of the Nephilim: and we were in our own sight as grasshoppers, and so we were in their sight.