Joshua 15:14 - Wesley's Explanatory Notes

Drove thence — That is, from the said territory, from their caves and forts in it. These giants having either recovered their cities, or defended themselves in the mountains. Three sons of Anak — Either the same who are mentioned, Numbers 13:33, and so they were long — lived men, such as mainly were in those times and places: or their sons, called by their father's names, which is very usual.