§ 34.8. =The Roman Primacy.=--The claims of the Roman bishopric to the primacy over the whole church, which reached its fuller development in the 4th and 5th centuries (§ 46, 7), were founded originally and chiefly on the assertion that the promise of Matt. xvi. 18, 19, was given only and exclusively to the Apostle Peter as the Primate of the Apostles and the head of the church. This assumption overlooked the fact that in Matt. xviii. 18 and John xx. 21 ff., this promise was given with reference to all the Apostles. These claims were further supposed to be supported by the words addressed to Peter, “strengthen thy brethren” (Luke xxii. 31), which seemed to accord to Peter a primacy over his fellow Apostles; and also by the interpretation given of John xxi. 15 ff., where “lambs” were understood of laymen and “sheep” of the Apostles. It was likewise assumed that the bishop of Rome was the successor of Peter, and so the legitimate and only heir of all his prerogatives. The fable of the Roman bishopric of Peter (§ 16, 1) was at an early period unhesitatingly adopted, all the more because no one expected the results which in later times were deduced from a quite different understanding of Matt. xvi. 18. During this whole period such consequences were never dreamt of either by a Roman bishop or by anybody else. Only this was readily admitted at least by the West that Rome was the foremost of all the Apostolic churches, that there the Apostolic tradition had been preserved in its purest form, and that, therefore, its bishops should have a particularly influential voice in all questions that were to be judged of by the whole episcopate, and the Roman bishops were previously content with taking advantage of this concession in the largest measure possible.[96] § 35. THE ADMINISTRATION OF BAPTISM.[97]