Okla. Stat. tit. 5, § 5-3: Duties of attorney and counselor

It is the duty of an attorney and counselor:

First. To maintain, while in the presence of the courts of

justice, or in the presence of judicial officers engaged in the

discharge of judicial duties, the respect due to the said courts and

judicial officers, and at all times to obey all lawful orders and

writs of the court.

Second. To counsel and maintain no actions, proceedings or

defenses, except those which appear to him legal and just, except

the defense of a person charged with a public offense.

Third. To employ for the purpose of maintaining the causes

confided to him such means only as are consistent with truth, and

never to seek to mislead the judges by any artifice or false

statements of facts or law.

Fourth. To maintain inviolate the confidence, and, at any peril

to himself, to preserve the secrets of his client.

Fifth. To abstain from all offensive personalities, and to

advance no fact prejudicial to the honor or reputation of a party or

witness unless required by the justice of the cause with which he is

charged.

Sixth. Not to encourage either the commencement or continuance

of an action or proceeding from motive of passion or interest.

Seventh. Never to reject for any consideration personal to

himself the cause of the defenseless or the oppressed.