W. Va. Const. art. VI, § 16

Members of the Legislature, before they enter upon their 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 West Virginia, and faithfully discharge the duties of Senator (or Delegate) according to the best of my ability”; and they shall also take this further oath, to wit: “I will not accept or receive, directly or indirectly, any money or other valuable thing, from any corporation, company, or person for any vote or influence I may give or withhold, as Senator (or Delegate) on any bill, resolution or appropriation, or for any act I may do or perform as Senator (or Delegate).” These oaths shall be administered in the hall of the house to which the member is elected, by a judge of the supreme court of appeals, or of a circuit court, or by any other person authorized by law to administer an oath; and the secretary of state shall record and file said oaths subscribed by each member; and no other oath or declaration shall be required as a qualification. Any member who shall refuse to take the oath herein prescribed, shall forfeit his seat; and any member who shall be convicted of having violated the oath last above required to be taken, shall forfeit his seat and be disqualified thereafter from holding any office of profit or trust in this State.