The churches back in the day, before Martin Luther's reforms, before the Bible could be printed in local languages, very much enjoyed their complete monopoly on the Word of God
They could say whatever they wanted
I suspect a successful ban of the Bible would give them that back.
Though it would be impossible to actually ban and all a ban could do is make the book more desirable to read. It might push people towards the online annotated, hyperlinked editions of the book such as the skeptic's annotated Bible
None of our major holidays are at all related to Abrahamic religions. Easter is still named for the ancient fertility goddess whose festival it was before it was reskinned as Christian. Christmas takes the pan-european mid winter festival and paints a star on it. The pre-christian Romans held the festival of Sol Invictus (the invincible sun) on December 25th. Christmas trees were a pre-christian tradition in and around modern Germany
There would be massive social pressure to not change holidays
Summary: Latin languages, their local words for Passover; Germanic language, their local name for their fertility deity — Eastre in old English, Easter now