§ 31.10  OATH.
   Before entering upon the duties of their respective offices, all municipal officers, whether elected or appointed, shall take and subscribe to the following oath:
“I,                              , do solemnly swear that I will support the Constitution of the United States and the Constitution of the State of Illinois, and that I will faithfully discharge the duties of the office of according to the best of my ability.”
(`92 Code, § 1-2-21)
Statutory reference:
   Similar provisions, see ILCS Chapter 65, Act 5, § 3.1-15-20