When Satan tells me I am a sinner he comforts me immeasurably, since Christ died for sinners.
Martin LutherOne is not righteous who does much, but the one who, without work, believes much in Christ. The law says, 'Do this,' and it is never done. Grace says, 'Believe in this,' and everything is already done.
Martin LutherFor from the error of not knowing, or understanding, what sin is, there necessarily arises another error, that people cannot know or understand what grace is.
Martin LutherGod is not a God of sadness, death, etc., but the devil is. Christ is a God of joy, and so the Scriptures often say that we should rejoice ... A Christian should and must be a cheerful person.
Martin Luther