[Christ's] mission and work it is to help against sin and death, to justify and bring life. He has placed his help in baptism and the Sacrament [i.e., communion/Eucharist/Lord's supper], and incorporated it in the Word and preaching. To our eyes Baptism [capitalized in original] appears to be nothing more than ordinary water, and the Sacrament of Christ's body and blood simple bread and wine, like other bread and wine, and the sermon, hot air from a man's mouth. But we must not trust what our eyes see.
Martin LutherThe Holy Spirit is no Skeptic, & the things He has written in our hearts are not doubts or opinions, but assertions - surer & more certain than sense & life itself.
Martin LutherWhen the devil wants to cause offense against the true doctrine and faith, he does not do so through insignificant people, who do not rate highly with the world, but through those who are the very best, the wisest, the holiest, and the most learned.
Martin LutherWe know that death never skips or spares anybody and that no one ever returns. And yet we go on like the blind, who see as little at midday as in the pitch-dark night. We do not take these examples to heart; we do not realize that today or tomorrow our turn will come.
Martin Luther