This is an unhappy expression, bringing in the name of God where it does not occur. In the O.T. it is chalilah, 'far be it.' Ge 44:7,17, etc. In the N.T. ?? ???????, 'let it not be.' Ro 3:4,6,31, etc.
They said to him, "Why does my lord speak such words as these? Far be it from your servants to do such a thing.
But he said, "Far be it from me to do this. The man in whose possession the cup has been found, he shall be my slave; but as for you, go up in peace to your father."
May it never be! Rather, let God be found true, though every man be found a liar, as it is written, "THAT YOU MAY BE JUSTIFIED IN YOUR WORDS, AND PREVAIL WHEN YOU ARE JUDGED."