Here's what the Oath of Allegiance states:
"I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, of whom or which I have heretofore been a subject or citizen; that I will support and defend the Constitution and laws of the United States of America against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I will bear arms on behalf of the United States when required by the law; that I will perform noncombatant service in the Armed Forces of the United States when required by the law; that I will perform work of national importance under civilian direction when required by the law; and that I take this obligation freely, without any mental reservation or purpose of evasion; so help me God."
It's important to note that the inclusion of "so help me God" is optional. The oath is still valid without it.
The Oath of Allegiance is a crucial part of the naturalization process, signifying the immigrant's commitment to becoming a U.S. citizen and embracing their new country.