No farther than to people's ears
"I can get no farther than to men’s ears. Their hearts I cannot reach. And since I cannot pour faith into their hearts, I cannot, nor should I, force any one to have faith. That is God’s work alone, Who causes faith to live in the heart." "For where the heart is not good, I care nothing at all for the work. We must first win the hearts of the people. And that is done when I teach only the Word of God, preach the Gospel and say: “Dear lords or pastors, desist from holding the mass, it is not right, you are sinning when you do it. I cannot refrain from telling you this.” But I would not make it an ordinance for them, nor urge a general law. He who would follow me could do so, and he who refused would remain without. In the latter case the Word would sink into the heart and perform its work. Thus he would become convinced and acknowledge his error." (Martin Luther) https://whatdoesthismean.blog/i-did-nothing-the-word-did-it-all-luthers-second-invocavit-s