Having read the first and second chapters, Alex, it is unimpressive, relying on what amounts to obfuscation and sleight of hand to quibble with the crystal-clear words of Christ himself in Matthew 16:17-19.
As an example, take your author's claim that in Greek and Latin the name given to Peter (
petro,
petrus) is masculine gender, while the Rock referred to by Christ is feminine (
petra). This minor disjunct is somehow taken to demonstrate that there is no distinct connection between Christ calling Peter
petro and
immediately after referring to the
petra on which he founds his Church. On the face of it, that's an extremely outlandish conclusion. But the clincher is that in Aramaic,
the language Christ spoke, the words are
identical (
cepha). To discover this all you would have to consult is the online Catholic Encyclopedia page on
the Pope. As a result, one has to wonder how much homework you did on this man's claims.
The greater number of tile Fathers of the Church have not admitted the play upon words that our Ultramontanes attribute to Jesus Christ in applying to St. Peter these words, "And upon this rock I will build my Church." [...] As for the few old writers who admitted this play upon words, it must be remembered that none of them interpreted the text in a manner favorable to the Papal sovereignty, nor drew from it the exaggerated consequences of this system.
As for what the Church Fathers thought of that passage, pay attention to the words of Basil the Great, John Chrysostom, and Gregory of nαzιanzen - who are not some 'old writers' but
the 'Three Holy Hierarchs' of the East.
He saith to him, "Feed my sheep". Why does He pass over the others and speak of the sheep to Peter? He was the chosen one of the Apostles, the mouth of the disciples, the head of the choir. For this reason Paul went up to see him rather than the others. And also to show him that he must have confidence now that his denial had been purged away. He entrusts him with the rule [prostasia] over the brethren. . . . If anyone should say "Why then was it James who received the See of Jerusalem?", I should reply that He made Peter the teacher not of that see but of the whole world.
Seest thou that of the disciples of Christ, all of whom were great and deserving of choice, one is called a rock, and is entrusted with the foundations of the Church.
And when he, the instrument of such and so great a judgment; he the minister of the so great wrath of God upon a sinner; that blessed Peter, who was preferred before all the other disciples; who alone received a greater testimony and blessing than the rest; he to whom were entrusted the keys of the Kingdom of Heaven.
Hope this little bit helps sway you, though undoubtedly prayers will be more efficacious.