any religion or to the advocacy of no-religion, and it may not aid, foster, or promote one religion or religious theory against another or even against the militant opposite. The First Amendment mandates governmental neutrality between religion and religion, and between religion and nonreligion." The clearest command of the Establishment Clause is, according to the Supreme Court in Larson v. Valente, , that one religious denomination cannot be officially preferred over another. In Zorach v. Clauson (1952) the Supreme Court further observed: "Government may not finance religious groups nor undertake religious instruction nor blend secular and sectarian education nor use secular institutions to force one or some religion on any person. But we find no constitutional requirement which makes it necessary for government to be hostile to religion and to throw its weight against efforts to widen the effective scope of religious influence. The government must be neutral when it comes to competition between sects. It may not thrust any sect on any person. It may not make a religious observance compulsory. It may not coerce anyone to attend church, to observe a religious holiday, or to take religious instruction. But it can close its doors or suspend its operations as to those who want to repair to their religious sanctuary for worship or instruction." In McCreary County v. American Civil Liberties Union (2005) the Court explained that when the government acts with the ostensible and predominant purpose of advancing religion, then it violates that central Establishment Clause value of official religious neutrality, because there being no neutrality when the government's ostensible object is to take sides. In Torcaso v. Watkins (1961), the Supreme Court ruled that the Constitution prohibits states and the federal government from requiring any kind of religious test for public office. The Supreme Court in the same case made it also clear that state governments and the federal government are prohibited from passing laws or imposing requirements which aid all religions as against non-believers, as well as aiding those religions based on a belief in the existence of God as against those religions founded on different beliefs. In Board of Education of Kiryas Joel Village School District v. Grumet (1994), the Court concluded that "government should not prefer one religion to another, or religion to irreligion." In a series of cases in the first decade of the 2000s—Van Orden v. Perry (2005), McCreary County v. ACLU