God wants our conscience to be certain and sure that it is pleasing to Him. This cannot be done if the conscience is led by its own feelings, but only if it relies on the Word of God.
Martin LutherSome plague the people with too long sermons; for the faculty of listening is a tender thing, and soon becomes weary and satiated.
Martin LutherAnd though this world with devils filled, Should threaten to undo us, We will not fear, for God hath willed His truth to triumph through us.
Martin LutherFor it is a horrible blasphemy to imagine that there is any work by which you should presume to pacify God, since you see that there is nothing which is able to pacify Him but this inestimable price, even the death and the blood of the Son of God, one drop of which is more precious than the whole world.
Martin Luther