3. Because Jesus Christ, in giving the keys of the kingdom, gave not any one sort, act, part, or piece of the keys severally, but the whole power of the keys, all the sorts and acts thereof jointly. Therefore it is said, _I give the keys of the kingdom_--and _whatsoever thou shalt bind--whatsoever thou shalt loose--whose soever sins ye remit--whose soever sins ye retain_--Matt. xvi. 19, John xx. 23. So that here is not only key, but keys given at once, viz. key of doctrine, and the key of discipline; or the key of order, and the key of jurisdiction; not only binding or retaining, but loosing or remitting of sins, viz. all acts together conferred in the keys. Now if Christ gave the keys to the magistrate, then he gave all the sorts of keys and all the acts thereof to him: if so, the magistrate may as well preach the word, and dispense the sacraments, &c., (as Erastus would have him,) as dispense the censures, &c., (for Christ joined all together in the same commission, and by what warrant are they disjoined?) and if so, what need of pastors, teachers, &c.,, in the Church? Let the civil magistrate do all. It is true, the ruling elder (which was after added) is limited only to one of the keys, viz. the _key of discipline_, 1 Tim. v. 17; but this limitation is by the same authority that ordained his office. 4. Because if Christ gave the keys to the civil magistrate as such, then to every magistrate, whether Jewish, heathenish, or Christian: but not to the Jewish magistrate; for the sceptre was to depart from him, and the Jewish polity to be dissolved, and even then was almost extinct. Not to the heathenish magistrate, for then those might be properly and formally church governors which were not church members; and if the heathen magistrate refused to govern the Church, (when there was no other magistrate on earth,) she must be utterly destitute of all government, which are grossly absurd. Nor, finally, to the Christian magistrate, for Christ gave the keys to officers then in being; but at that time no Christian magistrate was in being in the world. Therefore the keys were given by Christ to no civil magistrate, as such, at all.