At the risk of beating a dead horse, I heard something this morning that brought to light some further insight into this controversy. In Matthew 16:17, we read, " Jesus said to him in reply, “Blessed are you, Simon Bar-Jonah. For flesh and blood has not revealed this to you, but my heavenly Father." By using the name "Simon Bar-Jonah”, we can see that Jesus was talking in Aramaic. It was only in the interpretation to Greek that the little “Petra/Petros” thing came about.