One common Protestant argument historically has been that the translation from the New Testament in Hebrew into Greek is tenuous at best as there is no real evidence or indication that the New Testament (in Greek) was ever translated from Hebrew or Aramaic texts; for that argument see Aramaic primacy. According to the Protestant transliteration argument, in the language that Jesus spoke, the same word, כפא (cepha), was used for both Peter's name and for the rock on which Jesus said he would build his church. Since the Protestant Reformation, many non-Catholics have challenged the Catholic Church's position, questioning whether the feminine πέτρα refers to Peter, and claiming it may instead refer to either Peter's confession of faith or to Jesus himself.