2 Chronicles 30:1-5

Now Hezekiah sent word to all Israel and Judah and also wrote letters to Ephraim and Manasseh, that they should come to the house of the Lord in Jerusalem to celebrate the Passover to the Lord God of Israel.

For the king and his princes and all the assembly in Jerusalem had decided to celebrate the Passover in the second month,

since they could not celebrate it at that time, because the priests had not consecrated themselves in sufficient numbers, nor had the people been gathered to Jerusalem.

So the decision was right in the sight of the king and all the assembly.

So they established a decree to circulate a proclamation throughout Israel from Beersheba to Dan, that they are to come to celebrate the Passover to the Lord God of Israel in Jerusalem. For they had not celebrated it in great numbers as was written.