As Christians, we're under oath all the time. We're not always required to say everything we think or know, but we're always to speak as He did-truthfully.
I'll take thy word for faith, not ask thine oath; Who shuns not to break one will sure crack both.
If ever I utter an oath again may my soul be blasted to eternal damnation!
George Bernard Shaw
To place any dependence upon Militia, is, assuredly, resting upon a broken staff ... If I was called upon to declare upon Oath , whether the Militia have been most serviceable or hurtful upon the whole; I should subscribe to the latter.
If you call yourself an American that means that you have embraced the constitution, because that is what an American is. A citizen of the United States of America is someone who has sworn an oath of allegiance to that document, to the words, to the ideals of that document. Right now we have citizens who don't even understand what that document is.
All presidents swear an oath to the Constitution to keep this country united, and when the country fell apart, Lincoln had to put it back together again, with a lot of help. But he bore total responsibility.