Numbers 13:28

And they had gone up into the Negev and came to Hebron where Ahiman, Sheshai, and Talmai, the descendants of Anak were. (Now Hebron was built seven years before Zoan in Egypt.)

“Now why are you discouraging the sons of Israel from crossing over into the land which Yahweh has given them?

‘Where can we go up? Our brothers have made our hearts melt, saying, “The people are bigger and taller than we; the cities are large and fortified to heaven. And moreover, we saw the sons of the Anakim there.”’

a people great and tall, the sons of the Anakim, whom you know and of whom you have heard it said, ‘Who can stand before the sons of Anak?’

“I was forty years old when Moses the servant of Yahweh sent me from Kadesh-barnea to spy out the land, and I brought word back to him as it was in my heart.

Then Ishbi-benob, who was among those born to the giants, the weight of whose spear was three hundred shekels of bronze in weight, was girded with a new sword, and he intended to strike down David.