Numbers 13:18

13:18 and see what the land is like, and whether the people who live in it are strong or weak, few or many,

Numbers 13:28

13:28 But the inhabitants are strong, and the cities are fortified and very large. Moreover we saw the descendants of Anak there.

Numbers 24:21

24:21 Then he looked on the Kenites and uttered this oracle:

“Your dwelling place seems strong,

and your nest is set on a rocky cliff.