that is your interpretation which ignores the fact that Jesus changed simon's name to peter which means rock
Johann Joseph Ignaz Von Dollinger, taught*church*history as a Roman Catholic for 47 years in the 19th century, speaking on Matthew 16:18 and theRock*admits no one in the early*church*knew of papal primacy.
"In the first three centuries, St. Irenaeus is the only writer who connects the superiority of the Roman*church*with doctrine; but he places this superiority, rightly understood, only in its antiquity, its double apostolical origin, and in the circumstance of the pure tradition being guarded and maintained there through the constant concourse of the faithful from all countries. Tertullian, Cyprian, Lactantius, know nothing of special papal prerogative, or of nay higher or supreme right of deciding in matter of doctrine. In the writings of the Greek doctors, Eusebius, St. Athanasius, St. Basil the great, the two Gregories, And St. Epiphanius, there is not one word of any prerogatives of the Roman bishop. The most copious of the Greek fathers, St. Chrystostom, is wholly silent on the subject, and so are the two Cyrils; equally silent are the Latins, Hilary, Pacian, Zeno, Lucifer, Sulpicius, and St. Ambrose."
The Popes and The Council, pgs. 70-74 quoted from The Matthew 16 Controversy, Peter and The*Rock, William Webster.