Nope. There's only obedience to this oath:
"I, [name], do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God."
Yes, indeed.
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof;
Whatever is the honest, oath-affirming person to make of this?