To take an oath, is to swear solemnly; to vow.
Example: "I, do solemnly swear that I will support and defend the Constitution of the United States against all enemies, foreign and domestic."
- Oath for federal officials
- Oath for federal judges
- Marriage "Holy Matrimony"
- Ordination Oaths of Roman Catholic Holy Orders and Buddhist Monk and Nun Triple Jewel Sangha Pratimoksha Vows
- Hippocratic Oath and Oath of the Hindu Physician
- Medical ethics and Bioethics: Ethics and Morality
- Ahimsa Dharma
- Five Precepts and Ten Commandments as Oaths
- Oath Keepers - A group of private citizens who, while not required to take a federal oath officially, do so anyway.