For seven days they kept the Feast of Unleavened Bread with joy, because the LORD had made them joyful and turned the heart of the king of Assyria toward them to strengthen their hands in the work on the house of the God of Israel.
Here we have, I. The Jews' enemies made their friends. When they received this order from the king they came with as much haste to encourage and assist the work as their predecessors had done to put a stop to it, Ezr 4:23. What the king ordered they did, and, because they would not be thought to do it with reluctance, they did it speedily, Ezr 6:13.
Commenting on Ezra 6:13-22
kept the feast . . . with joy: for the Lord . . . turned the heart of the king of Assyria unto them--that is, king of the Persian empire, which now included the possessions, and had surpassed the glory, of Assyria. The favorable disposition which Darius had evinced towards the Jews secured them peace and prosperity and the privileges of their own religion during the rest of his reign.
And kept the feast of unleavened bread seven days with joy: for the LORD had made them joyful, and turned the heart of the king of Assyria unto them, to strengthen their hands in the work of the house of God, the God of Israel. (k) Meaning Darius who was king of the Medes, Persians and Assyrians.