Every court and person having authority to hear, receive, and examine evidence may administer the following oath-affirmation to all witnesses legally called before them: Do you solemnly swear or affirm that the testimony you are about to give will be the truth, the whole truth and nothing but the truth?
HRS § 621-12
Rules of Court
As to acceptance of affirmation in lieu of oath, see HRCP rule 43(d); DCRCP rule 43(d).
The judicial oath in common use is a legal oath. 8 H. 259.
Oaths, generally, see § 1-21.