Numbers 13:22, 28, 33

They went up through the Negev and came to Hebron, where Ahiman, Sheshai and Talmai, the descendants of Anak, lived. (Hebron had been built seven years before Zoan in Egypt.)

But the people who live there are powerful, and the cities are fortified and very large. We even saw descendants of Anak there.

We saw the Nephilim there (the descendants of Anak come from the Nephilim). We seemed like grasshoppers in our own eyes, and we looked the same to them.”