The case is Abington School District v. Schempp, decided on June 17th, 1963, which removed Bible reading from public schools by a vote of 8-1. The court held that laws requiring reading of Scriptures in public schools were unconstitutional.
The only dissenting justice was Potter Stewart and he nailed it:
As a matter of history, the First Amendment was adopted solely as a limitation upon the newly created National Government. The events leading to its adoption strongly suggest that the Establishment Clause was primarily an attempt to insure that Congress not only would be powerless to establish a national church, but would also be unable to interfere with existing state establishments. (my emphasis)
But the court relied on the 14th Amendment to bolster its argument, leaving Steward (alone) to point out the irony that the 14th Amendment which was “designed to leave the States free to go their own way should now have become a restriction upon their autonomy.”
But Stewart wasn’t finished:
If religious exercises are held to be an impermissible activity in schools, religion is placed in an artificial and state-created disadvantage…. And a refusal to permit religious exercises thus is seen, not as the realization of state neutrality, but rather as the establishment of a religion of secularism, or at least, as governmental support of the beliefs of those who think that religious exercises should be conducted only in private. (again, my emphasis)
But the damage was done. Now public schools and the little statists they turn out by the millions have no belief system that supports the Constitution. Instead, they believe in relativism, or nothing at all. They are perfect for manipulation by the likes of Obama and his communists (I use that word deliberately and carefully) who have been laboring for decades to remove all vestige of faith and morality from the public square. This is just as Whittaker Chambers posed the threat in his astounding revelation about communist infiltration of the federal government, Witness. The battle is between belief in God or belief in Man.
Thanks to Abington, a major battle in favor of belief in Man was ceded to the communists.