Numbers 13:22, 28, 33

They went up into the Negeb and came to Hebron. Ahiman, Sheshai, and Talmai, the descendants of Anak, were there. (Hebron was built seven years before Zoan in Egypt.)

However, the people who dwell in the land are strong, and the cities are fortified and very large. And besides, we saw the descendants of Anak there.

And there we saw the Nephilim (the sons of Anak, who come from the Nephilim), and we seemed to ourselves like grasshoppers, and so we seemed to them.”