2 Chronicles 30:2-5

2For the king had taken counsel, and his princes, and all the assembly in Jerusalem, to keep the passover in the second month.

3For they could not keep it at that time, because the priests had not sanctified themselves in sufficient number, neither had the people gathered themselves together to Jerusalem.

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

5So they established a decree to make proclamation throughout all Israel, from Beer-sheba even to Dan, that they should come to keep the passover unto Jehovah, the God of Israel, at Jerusalem: for they had not kept it in great numbers in such sort as it is written.