Okla. Stat. tit. 51, § 51-64: Oath

Before the Senate shall proceed to consider the articles of

impeachment, it shall organize itself into a court of impeachment,

as provided herein, and every Senator present shall take the

following oath or affirmation:

"I do solemnly swear (or affirm) that I will faithfully and

impartially try the impeachment against A. B., and do justice

according to the law and the evidence."