No, they are not parties to the new covenant, but they lay hold of it in that they obey the laws related to it and cooperate with arrangements made through it.
(‏ اشعياء ٥٦ :‏ ٦‏ )‏ صحيح انهم ليسوا طرفا في العهد الجديد ،‏ ولكنهم يتمسكون به بإطاعتهم شرائعه وترتيباته .‏