This passage creates something rare in the Law: a second chance at a feast. Anyone unclean or far away at Passover could keep it exactly one month later, on the 14th of the second month. Jewish tradition calls it Pesach Sheni, “Second Passover,” and it is still marked lightly today (some eat a piece of matzah on the day). Israel's kings used the provision at national scale: Hezekiah's great Passover was held in the second month on exactly this ground (2 Chronicles 30).