These cases involve claims of conscientious objectors under § 6 (j) of the Universal Military Training and Service Act, 50 U. S. C. App. § 456 (j) (1958 ed.), which exempts from combatant training and service in the armed forces of the United States those persons who by *165 reason of their religious training and belief are conscientiously opposed to participation in war in any form. The cases were consolidated for argument and we consider them together although each involves different facts and circumstances. The parties raise the basic question of the constitutionality of the section which defines the term "religious training and belief," as used in the Act, as "an individual's belief in a relation to a Supreme Being involving duties superior to those arising from any human relation, but [not including] essentially political, sociological, or philosophical views or a merely personal moral code." The constitutional attack is launched under the First Amendment's Establishment and Free Exercise Clauses and is twofold: (1) The section does not exempt nonreligious conscientious objectors; and (2) it discriminates between different forms of religious expression in violation of the Due Process Clause of the Fifth Amendment. Jakobson (No. 51) and Peter (No. 29) also claim that their beliefs come within the meaning of the section. Jakobson claims that he meets the standards of § 6 (j) because his opposition to war is based on belief in a Supreme Reality and is therefore an obligation superior to one resulting from man's relationship to his fellow man. Peter contends that his opposition to war derives from his acceptance of the existence of a universal power beyond that of man and that this acceptance in fact constitutes belief in a Supreme Being, qualifying him for exemption. We granted certiorari in each of the cases because of their importance in the administration of the Act. 377 U. S. 922.