Every interpreter, except those certified under the rules of the Supreme Court and who have taken the prescribed oath of office, appointed pursuant to sections 25-2401 to 25-2407, before entering upon his or her duties as such, shall take an oath that he or she will, to the best of his or her skill and judgment, make a true interpretation to such person unable to communicate the English language of all the proceedings in a language which such person understands and that he or she will, in the English language, repeat the statements of such person to the court, jury, or officials before whom such proceeding takes place.