§ 8.   Oath required of legislators and officers--Forfeiture of office for false swearing. Members of the Legislature and officers thereof, before they enter upon their official duties, shall take and subscribe the following oath or affirmation: I do solemnly swear (or affirm) that I will support the Constitution of the United States and the Constitution of the state of South Dakota, and will faithfully discharge the duties of (senator, representative or officer) according to the best of my abilities, and that I have not knowingly or intentionally paid or contributed anything, or made any promise in the nature of a bribe, to directly or indirectly influence any vote at the election at which I was chosen to fill said office, and have not accepted, nor will I accept or receive directly or indirectly, any money, pass, or any other valuable thing, from any corporation, company or person, for any vote or influence I may give or withhold on any bill or resolution, or appropriation, or for any other official act.