His daughter — i.e., Ephraim’s.
Built may mean rebuilt, or restored, or fortified (Joshua 6:26; Psalms 102:16; 2 Chronicles 11:6).
Beth-horon the nether, and the upper. — The two Beth-horons (Joshua 10:10) were apparently a Canaanite foundation. They are now Beit ur et-Tahta and Beit-ur el-Fariqa — i.e., Lower and Upper Beitur.
Uzzen-sherah. — Sherah’s ear, or peak, only mentioned here. The relation of Sherah to Beth-horon may be compared with that of Achsah to the Negeb of Judah (Joshua 15:19. Cf. also Joshua 17:4).