[ravenwolf]

It makes no difference what Petros is
Jesus spoke in Aramaic, that’s what cephas is.

It being wrote in Greek does not change the meaning
of an Aramaic word.

[imardmd1]

You miss the point. When Cephas is translated by the Holy Spirit to mean "stone", that's what it is -- stone (as the great scholars who knew both languages well, showed us).

BTW, wherever did you get the idea that "Cephas" means "rock"? Please, I would be grateful if you would tell me where you found this definition.

[aMorePerfectUnion]

“Jesus spoke in Aramaic, that’s what cephas is.”

No doubt He spoke Aramaic. Likely Greek, the trade language and likely Hebrew.

More I mportantly, the Holy Spirit inspired the NT in Greek, and chose those words we see recorded in the manuscripts.