a brooding and pervasive devotion to the secular and a passive, or even active, hostility to the religious. Such results are not only not compelled by the Constitution, but, it seems to me, are prohibited by it. Neither government nor this Court can or should ignore the significance of the fact that a vast portion of our people believe in and worship God and that many of our legal, political, and personal values derive historically from religious teachings. Government must inevitably take cognizance of the existence of religion and, indeed, under certain circumstances the First Amendment may require that it do so.'.