First of all Matthew wasn't written originally in Hebrew, Aramaic, or any other language than Greek. The name Iesous appears in
Matthew 1:21, if it was originally written in Hebrew or Aramaic the name in Hebrew and Aramaic didn't survive. Why????
The Greek name is what we have been reading and baptizing people for over 2,000 years. Why? Because it is found in the ORIGINAL Greek. Not one shred of evidence which would lead us to a Hebrew copy of Matthew. Guess what?
Matthew 16:18 makes absolutely NO SENSE in Hebrew or Aramaic! That is why the Roman Catholic Church uses the verse in Aramaic to prove Peter is the Pope. Because in Aramaic, there is only one word to denote rock, and if kepha was employed it would of meant Peter was the actual rock which Jesus would build upon. Sorry, but once again NO CIGAR for the Hebrew Matthew crowd.