actually, Christ was crucified on Thursday, the same day the lambs were killed by the priests. friday was a High Sabbath, saturday the regular weekly sabbath, and he arose, sometime that night, allowing the tomb to be empty on the first day of the week. check out hebrews4christians.com for a hebrew timeline John 19-31 speaks of a high sabbath(the first day of the feast of unleavened bread) thenext day was the regular weekly sabbath