Daniel 6:1
1It pleased Darius to set over the kingdom one hundred twenty local governors, who should be throughout the whole kingdom;
It pleased Darius to set 120 satraps throughout the whole kingdom. Wesley (on v. 2): Daniel will be first among the presidents—Belshazzar had promised him the third place; the first was general of the army, the second president of the palace, the third of the land and provinces.
A king orders his realm. Civil structure is not the enemy of faith. Daniel will serve inside it without treating the throne as God, and without despising the office Romans 13 and Titus 3 tell the church to honor.
Calvin: God cared for his Prophet, not so much for private respect as that the wretched captives and exiles should be benefited. We may deservedly call Daniel God’s hand in sustaining the Jews. The Persians, being barbarians, were not naturally more merciful; God interposed his servant.
In practice: the satrap-list is providence, not luck. Empires change hands; the Most High still rules. Public order is the stage on which God keeps his people, and not a blank check for the king to become a god.