2 Chronicles 30:6

6 So the posts went with the letters from the king and his princes throughout all Yisra'el and Yehudah, and according to the mitzvah of the king, saying, You children of Yisra'el, turn again to the LORD, the God of Avraham, Yitzchak, and Yisra'el, that he may return to the remnant that have escaped of you out of the hand of the kings of Ashshur.

2 Chronicles 30:6 Meaning and Commentary

2 Chronicles 30:6

So the posts went with the letters from the king and his
princes throughout all Israel and Judah
Both through the kingdoms of the ten tribes of Israel, and the kingdom of the two tribes of Judah and Benjamin:

and according to the commandment of the king, saying;
so they were ordered by the king to say, when they delivered the letters which by the king's commandment they carried; or this was the purport of them, as follows, especially of those that were sent to the ten tribes:

ye children of Israel, turn again unto the Lord God of Abraham, Isaac,
and Israel;
from whom they had revolted, and from whose worship they had departed, by setting up and serving the calves at Dan and Bethel:

and he will return to the remnant of you that are escaped out of the
hand of the king of Assyria;
Pul and Tiglathpileser, who had both invaded their land, and the latter had taken many of their cities, and carried the inhabitants captive, ( 2 Kings 15:19 2 Kings 15:29 ) .

2 Chronicles 30:6 In-Context

4 The thing was right in the eyes of the king and of all the assembly.

5 So they established a decree to make proclamation throughout all Yisra'el, from Be'er-Sheva even to Dan, that they should come to keep the Pesach to the LORD, the God of Yisra'el, at Yerushalayim: for they had not kept it in great numbers in such sort as it is written.

6 So the posts went with the letters from the king and his princes throughout all Yisra'el and Yehudah, and according to the mitzvah of the king, saying, You children of Yisra'el, turn again to the LORD, the God of Avraham, Yitzchak, and Yisra'el, that he may return to the remnant that have escaped of you out of the hand of the kings of Ashshur.

7 Don't be you like your fathers, and like your brothers, who trespassed against the LORD, the God of their fathers, so that he gave them up to desolation, as you see.

8 Now don't you be stiff-necked, as your fathers were; but yield yourselves to the LORD, and enter into his sanctuary, which he has sanctified forever, and serve the LORD your God, that his fierce anger may turn away from you.