john is using the official jewish calendar when describes the las supper as before the passover meal. >> judge jeanine: and how -- what day of the week ultimately do we think that the last supper occurred on? >> i think the last supper was on a wednesday and i used science and astronomy to calculate the ancient jewish calendars. they are based on observing the moon. we can use astrology and have confidence in these results. i believe the last supper was on a wednesday and crucifixion on a friday and resurrection on a sunday. >> the catholic church, we have all, millions of americans believe that thursday is the day of the last supper. and interestingly enough, i bet most people don't know matthew, mark, luke, versus john say it happened on different days. how is it that the catholic church hasn't recognized this?