There is a connection between the Crucifiction of the Messiah and Passover. The Crucifiction was brought about by the errant teachings of the Sadducees and Pharisees — the Jewish religious leaders at that time. They interpreted Scripture, the Torah, in such a way as to justify their Crucifiction of the Messiah. The claim and allegation of Christianity, of course, is that they errantly interpreted Scripture, and that "sinful" (=errant, wrong) interpretation of Scripture lead to a "sinful" (=errant, wrong) act. I understand that the Messiah poetically called these errant interpretations of the Sadducees and Pharisees "leaven": This reference to "leaven" further connects to Passover, the Feast of Un-leavened Bread, when the Jews are forbidden to eat leaven: Is there a connection here?