What does any of that have to do with Luther editing the bible to his own whims?
He translated it from Greek into a language spoken by common people, instead of a translation of a translation (Latin) understood only by the clergy.
Until then, the masses had to take their word for it,, and understand not much. The Roman elites had the corner on the market, and made themselves the purveyors/enforcers of faith and the necessary “middleman” with God.
They could, and did, make God’s word say whatever they wanted it to.