An oath required to be taken for any purpose shall be taken as follows:-
(a) by the person who is to take the oath holding in his uplifted hand a copy of the Bible, New Testament or Old Testament, as is appropriate to his case, and saying or repeating after the person administering the oath the words prescribed by law or by the practice of the Court, as the case may be:
Provided that if that person is physically incapable of so taking the oath such copy may be held before him by the person administering the oath; or
(b) in any other manner which is lawful according to any law, customary or otherwise, in force in Ghana.