Thematic Bible: Special passover, for those who were unclean, or on a journey, to be held in the second month

But there were men who couldn't observe the Passover that day because they had come in contact with a corpse. That very day, they approached Moses and Aaron and asked, "Why can't we bring an offering to the LORD at the appointed time among the Israelis, even though we are unclean because we came in contact with a corpse?" "Wait while I hear what the LORD has to say about you," Moses replied. read more.
Then the LORD told Moses, "Instruct the Israelis that when any of you or your descendants becomes unclean due to contact with a corpse, or if he is on a long journey, he nevertheless is to observe the LORD's Passover. On the fourteenth day of the second month at twilight, they are to eat it with unleavened bread and bitter herbs. They are not to leave any of it to remain until morning nor are they to break any of its bones. They are to observe it according to all the statutes of the Passover.

The king, his princes, and the entire assembly in Jerusalem had mutually decided to observe the Passover in the second month, but they had been unable to celebrate it then because not enough priests had consecrated themselves and the people had not yet been gathered together in Jerusalem. This decision seemed to be a good one in the opinion of the king and of the entire assembly,