Or the U.S. could respect the separation between Church and State and remove the reference to God from the oath of citizenship.
Perhaps you might care to expound?
Because I can't find 'God' in the 1st Amendment.
Which is because Original Intent separated God from the Official Recognition - by Govt - of God from a State sponsored Religion.
Jefferson is generally credited with the often deliberately misinterpreted position that Govt. may not recognize God.
https://en.wikipedia.org/wiki/Separation_of_church_and_state_in_the_United_StatesSeparation of church and state in the United States
From Wikipedia, the free encyclopedia
"Separation of church and state" is paraphrased from Thomas Jefferson and used by others in expressing an understanding of the intent and function of the Establishment Clause and Free Exercise Clause of the First Amendment to the Constitution of the United States which reads: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof..."
The phrase "separation between church & state" is generally traced to a January 1, 1802 letter by Thomas Jefferson, addressed to the Danbury Baptist Association in Connecticut, and published in a Massachusetts newspaper. Jefferson wrote,
“ "I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should 'make no law respecting an establishment of religion, or prohibiting the free exercise thereof,' thus building a wall of separation between Church & State."[1] ”
Jefferson was echoing the language of the founder of the first Baptist church in America, Roger Williams who had written in 1644,
“ "[A] hedge or wall of separation between the garden of the church and the wilderness of the world." ”
Article Six of the United States Constitution also specifies that "no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States."
Jefferson's metaphor of a wall of separation has been cited repeatedly by the U.S. Supreme Court. In Reynolds v. United States (1879) the Court wrote that Jefferson's comments "may be accepted almost as an authoritative declaration of the scope and effect of the [First] Amendment." In Everson v. Board of Education (1947), Justice Hugo Black wrote: "In the words of Thomas Jefferson, the clause against establishment of religion by law was intended to erect a wall of separation between church and state."[2]
In contrast to separationism, the Supreme Court of the United States in Zorach v. Clauson upheld accommodationism, holding that the nation's "institutions presuppose a Supreme Being" and that government recognition of God does not constitute the establishment of a state church as the Constitution's authors intended to prohibit.[3][4] As such, the Court has not always interpreted the constitutional principle as absolute, and the proper extent of separation between government and religion in the U.S. remains an ongoing subject of impassioned debate.[5][6][7][8]
Religion is a codified set of beliefs and practice of worship, either by individuals, churches, or Govt.
God is not.