Jesus spoke Aramaic, so what did he call God? Apart from Abba, which is Father, but more of a Daddy implication. I remember being told by a theological teacher who had been to Israel, how she had been moved to hear a small boy call for help to his father, using the word "Abba". It gave her a new insight to the Lord's Prayer. We don't have a Bible using anything but our vernacular, in English speakers case a word derived from Anglo-Saxon pagans. French use Dieu. Why on earth would Arabic or Aramaic speakers not use their vernacular name for God?
And I am sorry to have used "not kosher" in this context, when what I meant was "not acceptable". I used it, as I sometimes do, jokingly, for anything which is rejected. Obviously here it was interpreted seriously, but did lead to useful information.