You guys do not understand the Constitution.
It's Freedom OF Religion, not Freedom FROM Religion.
"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof, or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances."
What does this mean? It means you can't say Maryland will be a Catholic-only state. You also can't forbid everyone in the same state from going to church. It's about being religiously
neutral, neither in favor or against it.
That you guys seem to think he's an idiot for doing so reveals your extreme ignorance. In other words, don't call people idiots, unless you want to be called idiots.
Our library has a copy or two of the Bible, it also has a Quran, and other religious books. This what it means to be religiously neutral. By the way, here's what the Supreme Court said on this exact issue.
In case you missed all that, they said that just having it alone is unconstitutional, but having it accompanied with Bible course is somehow constitutional (yeah, I don't get their rationale either). Basically, if they have it just to kinda foist a symbol on people, I guess that's no go, but they fully approve of such within the confines of a curriculum. And no, it didn't seem to matter public of private school.
So then we read up on whether people can share their faith in a public school (they certainly can in private schools and religious schools) we find it's complicated because public school teachers are both private citizens and government employees:
Can Christian teachers express their faith in public schools?
Extracurricular religious activities are allowed, even on premise. They later noted this can happen during lunch, which is considered not part of the schooling time.
They can also educate and provide classroom instruction about Christianity and the Bible especially when doing lessons about history, culture or literature (provided this is about education not devotion). The Supreme Court did rule against reading the Bible in class, but mainly because it forces kids to read this aloud. There is no restriction, nor should there be of Bible study in clubs, or in elective classes that the student takes themselves.
As for religious symbols?
So generally, even when they upheld objections to public displays of religion, they still said it was out of line to do so. Bottom line? If the superintendent wanted it on a school mural, probably not. If he wants some stone tablets near his Bible, cross, icon of Mary, etc sure go ahead. It falls under personal belongings.