The following oath shall be administered by the clerk, in the presence of the court, to each of the petit jurors: “You do solemnly swear (or affirm, as the case may be) that you will well and truly try all issues which maybe submitted to you during the present session (or week, as the case may be), and true verdicts render according to the evidence – so help you God”; and the same oath must be administered to the talesman, substituting the word “day” for “session.”