Oh, and the priest and the Levite were not simply people who couldn't be bothered, they were people who were so concerned with their ritual cleanliness, who would have to go through a process of quarantine and bathing before resuming their duties in the Temple, that they had forgotten what the point of serving God is. If they had ever known, being hereditary post holders.

And since Jesus' mother's cousin was married to a priest of a status allowed to enter the Holy of Holies, he probably knew quite a bit about priestly behaviour.

Penny