Charles Ellicott Commentary Ezra 7:26

"And whosoever will not do the law of thy God, and the law of the king, let judgment be executed upon him with all diligence, whether it be unto death, or to banishment, or to confiscation of goods, or to imprisonment." — Ezra 7:26 (ASV)

Let judgment be executed speedily upon him. —Hence civil authority is added to religious. All these powers were usually entrusted to the provincial administrators, with more or less reservation, by the Persians. But it is obvious that their combination in the one person of this servant of Tehovah demanded express statement.