Meaning of the Air Force Oath of Office
The following text is taken from the Profession of Arms Center for Excellence (PACE) Oath of Office Pamphlet. It includes a reference to the corresponding Air Force Doctrine.

I (name) do solemnly swear (or affirm): Signifies a public statement of commitment. You are accepting responsibility for your actions. (Integrity First and Service Before Self)

That I will support and defend the Constitution of the United States: You are not swearing to support the President, the Country, the flag or a particular service, but rather the Constitution which symbolizes all of these things. (Airman’s Creed)

Against all enemies, foreign and domestic: We must always be prepared for current and future wartime operations. (Service Before Self and Airman’s Creed)

That I will bear true faith and allegiance to the same: Officers pledge allegiance to the nation, not a military service or organization. (Service Before Self)

That I take this obligation freely without any mental reservation or purpose of evasion: Your word is your bond! Without integrity the moral pillar of our core values is lost. (Integrity First and Airman’s Creed)

And that I will well and faithfully discharge the duties of the office upon which I am about to enter: Promising to give it our all. (Excellence In All We Do and Airman’s Creed)

So help me God (optional): Signifies truth and commitment to what you have sworn to in the oath. It is a call to a higher being or divine agency to assist with ensuring your own integrity and honesty. (Integrity First)

Pulled from

United States Air Force Oath of Office – Full Text, History, and Meaning

I was 17 when I took this oath and no one has relieved me of my oath.

This is what military service does, makes any boy or girl a woman and man in understanding the oath we took.