The evangelist here gives the names of the twelve. First, Simon, to whom he gave the name of Peter, in Greek, Petron, which signifies a rock; thus shewing that upon him his Church should be founded, as on a rock, never to be overturned. (Tirinus)
Polus, in his Synopsis Critic rum on this verse says that some Greek copies have, Proton Simona, First, Simon, which he believes to be the genuine reading: "nec dubito quin hæc sit germana lectio."