I got nothing against a kid reading a bible during his free time at school.
But the kid should be warned that he is going to get picked on for being weird.
Even back in the 60’s he would have gotten picked on for whipping out a bible in Junior High. At least where I went to school. If you do not fit the norm, you are teased (called being bullied these days.)
Perhaps the teacher was trying to look out for this little dork. And he is a little dork.
I hope you’re not serious.