Jesus was referring to this fisherman when he said, "Upon this rock I will build my church"
He sees what no one else can see--beyond the rough fisherman, beyond the 
faults,... [DOC] [TLE] St. Peter the Rock - Catholic Apologetics Information [PAR] While the author says, "it is more plausible that Jesus is referring to anything 
other ... Christ was addressing Simon directly, so He said, "You are [from now on] 
Peter.