This is evidence that does not forget. It is not confused by the excitement of the moment. It is not absent because human witnesses are. It is factual evidence. Physical evidence cannot be wrong; it cannot perjure itself; it cannot be wholly absent. Only its interpretation can err.
Oath definition, a solemn appeal to a deity, or to some revered person or thing, to witness one's determination to speak the truth, to keep a promise, etc.: to testify upon oath. See more. Dictionary.com
The Oath of Allegiance to the United States includes several promises immigrants make when they become U.S. citizens, including promises to: 1  Give up all prior allegiance to any other nation or sovereignty; 2  Swear allegiance to the United States; 3  Support and defend the Constitution and the laws of the United States; and.