Eshtaol

narrow pass or recess, a town (Josh 15:33) in the low country, the She-phelah of Judah. It was allotted to the tribe of Dan (Josh 19:41), and was one of their strongholds. Here Samson spent his boyhood, and first began to show his mighty strength; and here he was buried in the burying-place of Manoah his father (Judg 13:25; 16:31; 18:2; 18:8; 18:11; 18:12). It is identified with the modern Yeshua, on a hill 2 miles east of Zorah. Others, however, identify it with Kustul, east of Kirjath-jearim.

EBD - Easton's Bible Dictionary