Thematic Bible: Irregularities in

But he said unto them, Have ye not read what David did, when he was hungry, and they that were with him; how he entered into the house of God, and ate the showbread, which it was not lawful for him to eat, neither for them that were with him, but only for the priests?

For the king had taken counsel, and his princes, and all the assembly in Jerusalem, to keep the passover in the second month. For 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. And the thing was right in the eyes of the king and of all the assembly. read more.
So 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.

For there were many in the assembly that had not sanctified themselves: therefore the Levites had the charge of killing the passovers for every one that was not clean, to sanctify them unto Jehovah. For a multitude of the people, even many of Ephraim and Manasseh, Issachar and Zebulun, had not cleansed themselves, yet did they eat the passover otherwise than it is written. For Hezekiah had prayed for them, saying, The good Jehovah pardon every one that setteth his heart to seek God, Jehovah, the God of his fathers, though he be not cleansed according to the purification of the sanctuary. read more.
And Jehovah hearkened to Hezekiah, and healed the people.