How small regard is had to the oath of God by men professing the name of God.
source: George Gillespie (1846). “The Presbyterian's Armoury: and II. The works of Mr. George Gillespie, with memoir of his life and writings”

America never was America to me And yet I swear this oath - America will be!
topic: America, Oath, Swear, Breaking Silence
You know I took an oath to tell the truth when I took the witness stand
topic: Telling The Truth, Witness, Oath
When I testified in front of Congress, I know that I was testifying under oath and I told the truth,
topic: Congress, Oath, Testifying
topic: Office, January, Oath, Oath Of Office
Oaths are the counterfeit money with which we pay the sacrifice of love.
topic: Sacrifice, Pay, Oath, Love Sacrifice, Counterfeit Money
No oath can be too binding for a lover.
source: "Phædra". Play by Sophocles, Fragment 848,
An oath that is not to bee made is not to be kept.
source: George Herbert (1941). “The works of George Herbert”, Oxford University Press
Tis not the many oaths that make the truth; But the plain single vow, that is vow'd true.
source: William Shakespeare, Samuel Johnson, George Steevens, Isaac Reed (1778). “The Plays of William Shakespeare in Ten Volumes: With Corrections and Illustrations of Various Commentators”, p.101
It is great sin to swear unto a sin, But greater sin to keep a sinful oath.
source: 1592 Salisbury to Henry. Henry VI PartTwo, act 5, sc.1, l.180-1.
I'll take thy word for faith, not ask thine oath; Who shuns not to break one will sure crack both.
source: 1607 Pericles to Helicanus. Pericles, sc.2, l.125-6.
An oath-the strongest of religious ties.
source: James Madison (1867). “1769-1793”, p.352
source: P. D. James (2008). “The Lighthouse”, p.203, Faber & Faber
topic: Nothing But The Truth, Oath, Swear, Whole Truth