Md. Const. art. I, § 9

Every person elected, or appointed, to any office of profit or trust, under this Constitution, or under the Laws, made pursuant thereto, shall, before he enters upon the duties of such office, take and subscribe the following oath, or affirmation: I, ..........., do swear, (or affirm, as the case may be,) that I will support the Constitution of the United States; and that I will be faithful and bear true allegiance to the State of Maryland, and support the Constitution and Laws thereof; and that I will, to the best of my skill and judgment, diligently and faithfully, without partiality or prejudice, execute the office of.............., according to the Constitution and Laws of this State, (and, if a Governor, Senator, Member of the House of Delegates, or Judge,) that I will not directly or indirectly, receive the profits or any part of the profits of any other office during the term of my acting as..................