And we saw the Nephilim there (the sons of Anak come from the Nephilim), and in our own sight we seemed like grasshoppers, and we seemed that way in their sight.”

“the sons of Anak.” Anak was one of the Nephilim, the “Fallen Ones,” just as Numbers 13:33 says.
[For more on the Nephilim, see commentary on Genesis 6:4.]