An oath is a formal promise or declaration, often invoking a higher power or authority, to tell the truth or fulfill a commitment. Oaths are commonly used in legal settings, such as when witnesses testify in court or when public officials take office. They serve to emphasize the seriousness of the commitment being made. Oaths can also be found in various professions, such as medicine, where the Hippocratic Oath guides doctors to prioritize patient care. Additionally, many organizations have their own oaths, like the Scout Oath in scouting, which encourages members to uphold certain values and principles.