Origen

“ In saying this we are keeping for our part also to the ordinary interpretation which makes the “always” the time down to the consummation of the age, and are not asking more than is attainable to human nature as it is here. That interpretation may be adhered to and justice yet be done to the “I.” He who is with His disciples who are sent out to teach all the nations, until the consummation, may be He who emptied Himself and took the form of a servant, and yet afterwards may be another in point of state ”