(b) Before entering upon their duties, an oath or affirmation shall be administered to the foreman and each of the jurors providing, in substance, that each of them will: them; (i) Diligently inquire

(b) Before entering upon their duties, an oath or affirmation shall be administered to the foreman and each of the jurors providing, in substance, that each of them will: them; (i) Diligently inquire into all matters coming before (ii) Find and present indictments truthfully and without malice, fear of reprisal or hope of reward; and (iii) Keep secret matters occurring before the grand jury unless disclosure is directed or permitted by the court.