And they brought the king word again what she had said. And he sent: and all the ancients of Juda and Jerusalem were assembled to him.

And the king sendeth, and they gather unto him all the elders of Judah and Jerusalem,

Then the king sent and got together all the responsible men of Judah and of Jerusalem.

And they reported to the king what she had said. And he sent, and all the elders of Judah and Jerusalem were gathered to him.

And the king (a) sent, and they gathered unto him all the elders of Judah and of Jerusalem.
(a) Because he saw the great plagues of God that were threatened, he knew no more speedy way to avoid them, than to turn to God by repentance which cannot come but from faith, and faith by hearing the word of God.

And the king sent, and they gathered unto him all the elders of Judah and of Jerusalem. Josiah sent messengers throughout the land, and convened all the principal men in it at Jerusalem.

Josiah had received a message from God, that there was no preventing the ruin of Jerusalem, but that he should only deliver his own soul; yet he does his duty, and leaves the event to God. He engaged the people in the most solemn manner to abolish idolatry, and to serve God in righteousness and true holiness. Though most were formal or hypocritical herein, yet much outward wickedness would be prevented, and they were accountable to God for their own conduct.

JOSIAH CAUSES THE LAW TO BE READ. (2-Kings 23:1-3)
the king sent, and they gathered unto him all the elders--This pious and patriotic king, not content with the promise of his own security, felt, after Huldah's response, an increased desire to avert the threatened calamities from his kingdom and people. Knowing the richness of the divine clemency and grace to the penitent, he convened the elders of the people, and placing himself at their head, accompanied by the collective body of the inhabitants, went in solemn procession to the temple, where he ordered the book of the law to be read to the assembled audience, and covenanted, with the unanimous concurrence of his subjects, to adhere steadfastly to all the commandments of the Lord. It was an occasion of solemn interest, closely connected with a great national crisis, and the beautiful example of piety in the highest quarter would exert a salutary influence over all classes of the people in animating their devotions and encouraging their return to the faith of their fathers.

Instead of resting content with the fact that he was promised deliverance from the approaching judgment, Josiah did everything that was in his power to lead the whole nation to true conversion to the Lord, and thereby avert as far as possible the threatened curse of rejection, since the Lord in His word had promised forgiveness and mercy to the penitent. He therefore gathered together the elders of the nation, and went with them, with the priests and prophets and the assembled people, into the temple, and there had the book of the law read to those who were assembled, and concluded a covenant with the Lord, into which the people also entered. After this he had all the remnants of idolatry eradicated, not only in Jerusalem and Judah, but also in Bethel and the other cities of Samaria, and directed the people to strengthen themselves in their covenant fidelity towards the Lord by the celebration of a solemn passover.