Aksah came to Othniel

This is an idiom that refers to Aksah becoming Othniel's wife. AT: "when Aksah became Othniel's wife" (See: rc://en/ta/man/translate/figs-idiom)

she urged him to ask her father for a field.

This can be translated as direct speech. AT: "she urged him, 'Ask my father to give me a field.'" (See: rc://en/ta/man/translate/figs-quotations)