The detailed genealogical listing that Ezra compiles is necessary for at least three reasons: to ensure that only authorized men serve in the priesthood, to help determine tribal inheritance, and to preserve the record of the lineage leading up to the Messiah.
एज्रा ने वंशावली का जो साफ - साफ ब्यौरा लिखा, वह कम - से - कम तीन बातों के लिए ज़रूरी था ।