Read the Verse Closely Before You Widen It
Asked why the Kohen Gadol needs a wife but not children, he showed from the verses themselves that "his house" can mean only his wife.
The Mishnah teaches that the Kohen Gadol must be married, since the verse speaks of atoning for himself and his house, and his house is his wife. The Shaagas Aryeh asks at once: in Kiddushin the very same word, "your house", includes children in the case of the Hebrew servant who will not go free. Why are children not required here? He first notes that there an extra word widens the meaning. Then he proves from our passage that children cannot be meant. If children were included, so would every descendant, to the end of the generations, and no one has ever asked for that. The two confessions of Aharon point the same way. The first is for himself and his house, the second for the kohanim, his brothers. All kohanim are his offspring, so had his children been in the first, the second would have no purpose. Therefore his house is his wife alone.
Source: Gevuras Ari, Maseches Yoma 2a, on "beiso zo ishto"
The Rav did not accept a broad reading simply because it sounded reasonable. He asked what each word included, and what else would follow if it were stretched. Today, before you repeat a rule, a verse or a claim about someone, check its exact wording once. Ask what it really says, and what it would also have to say if you read it the way you wish to. If it is a halachic matter, bring the question to your rav. Precision is a form of respect for the Torah and for people.