And Caleb said, He that smiteth Kirjathsepher, and taketh it, to him will I give Achsah my daughter to wife. And Caleb, etc. - See this whole account, which is placed here by way of recapitulation, in Joshua 15:13-19 (note), and the explanatory notes there.
Related Commentaries of Judges 1:12
Judges 1:12
12 And Caleb said, He that smiteth Kirjathsepher, and taketh it, to him will I give Achsah my daughter to wife.