'Operation' in the Bible

For if the operation of the law, giving death, recorded in letters on stone, came with glory, so that the eyes of the children of Israel had to be turned away from the face of Moses because of its glory, a glory which was only for a time:

Will not the operation of the Spirit have a much greater glory?

For if the operation of the law, producing punishment, had its glory, how much greater will be the operation of the Spirit causing righteousness?