Every officer and employee of the Municipality shall, before entering upon his duties, take and subscribe to the following oath or affirmation to be filed with the Clerk: "I solemnly swear (or affirm) that I will support the Constitution of the United States and of the State of Ohio and will obey the laws thereof and that I will, in all respects, observe the provisions of the Charter and ordinances of the Municipality of Englewood, and will faithfully discharge the duties of upon which I am about to enter. "