Interpreting , the Mishnah taught that anyone who was "unclean by reason contact with a dead body or on a distant journey" and did not observe the first Passover was obliged to observe the second Passover. Furthermore, the Mishnah taught that if anyone unintentionally erred or was prevented from observing and thus did not observe the first Passover, then that person was obliged to observe the second Passover. The Mishnah asked why then specified that people "unclean by reason of with a dead body or on a distant journey" observed the second Passover. The Mishnah answered that it was to teach that those "unclean by reason of with a dead body or on a distant journey" were exempt from being cut off from their kin, while those who deliberately failed to observe the Passover were liable to being cut off from their kin.