This one?
I, _____, 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; and that I will obey the orders of the President of the United States and the orders of the officers appointed over me, according to regulations and the Uniform Code of Military Justice. So help me God.
Nothing in here about never attacking anyone, unfortunately. But even if there were, they forget these words about three seconds after saying them.
Would it be for giving credit it to the Tweeter?