4 KudoZ points awarded for this answer. Comment: "Yes, Sir. That is what I wanted to confirm, the broad sense or connotation of petra, and its contrasting meaning with specific Greek terms "petrus" and "cephas." This should settle the issue. This difference is key to differenciate the word "cephas" used by J.C. regarding Peter when He met him and when he refered to Peter thus as a cue that what He was about to say was a figurative word used for Himself. Besides, is it not true that Petra (not petrus or cephas) was the term used by Peter himself refering to J.C. when he quoted the old testament passage (Isaiah 28:16) in I Peter 2:6-8? Is it not the same Greek word that Peter used in the letter to Corinthious, which he used to refer to J.C. in the indirect quotation of the old testament passage in Corinthious 10:4? I will check the reference that you have given me, and, while you are not obligated to confirm this additional questions, you may do so, which will be highly appreciated if you want to elaborate more on this. Thank you very much."