Saul is expressing surprise because Benjamin was the smallest tribe in Israel, and other Israelites considered the tribe unimportant. Also, Benjamites considered the clan of which Saul was a member as unimportant. These questions can be translated as statements. Alternate translation: "I am from the tribe of Benjamin, the least important of all tribes. And my clan is the least important clan in our tribe. I do not understand why you are saying that the Israelite people want me and my family to do something important." (See: [[rc://en/ta/man/jit/figs-rquestion]])