וַיֵּֽאָסְפ֤וּ יְרוּשָׁלִַ֙ם֙ עַם־רָ֔ב לַעֲשׂ֛וֹת אֶת־חַ֥ג הַמַּצּ֖וֹת בַּחֹ֣דֶשׁ הַשֵּׁנִ֑י קָהָ֖ל לָרֹ֥ב מְאֹֽד׃
And there assembled at Jerusalem much people to keep the feast of unleavened bread in the second month, a very great congregation.
Read halakhic rulings (Jewish law) on II Chronicles 30:13: and classical halakhic sources.