"Thus we have two parts, preaching and believing.  His coming to us is preaching; His standing in our hearts is faith.  For it is not sufficient that He stand before our eyes and ears; He must stand in the midst of us in our hearts, and offer and impart to us peace."

            Sermons of Martin Luther, 8 vols., ed., John Nicholas Lenker, Grand Rapids:  Baker Book House, 1983, II,  p. 355.               

 

"This is going through closed doors, when He comes into the heart through the Word, not breaking nor displacing anything.  For when the Word of God comes, it neither injures the conscience, nor deranges the understanding of the heart and the external senses; as the false teachers do who break all the doors and windows, breaking through like thieves, leaving nothing whole and undamaged, and perverting, falsifying and injuring all life, conscience, reason, and the senses.  Christ does not do thus."

            Sermons of Martin Luther, II, p. 355. 

 

"Hence I send you into the world as my Father hath sent me; namely, that every Christian should instruct and teach his neighbor, that he may also come to Christ.  By this, no power is delegated exclusively to popes and bishops, but all Christians are commanded to profess their faith publicly and also to lead others to believe."

            Sermons of Martin Luther, II, p. 359.   

          

"The first and highest work of love a Christian ought to do when he has become a believer, is to bring others also to believe in the way he himself came to believe.  And here you notice Christ begins and institutes the office of the ministry of the external Word in every Christian; for He Himself came with this office  and the external Word."

            Sermons of Martin Luther, II, p. 359.

 

"Now God drives us to this by holding the law before us, in order that through the law we may come to a knowledge of ourselves.  For where there is not this knowledge, one can never be saved.  He that is well needs no physician; but if a man is sick and desires to become well, he must know that he is weak and sick, otherwise he cannot be helped."

            Sermons of Martin Luther, II, p. 370. 

 

"For the devil will not allow a Christian to have peace; therefore Christ must bestow it in a manner different from that in which the world has and gives, in that he quiets the heart and removes from within fear and terror, although without there remain contention and misfortune."

            Sermons of Martin Luther, II, p. 380.   

               

"Reformed theologians, in order to support their denial of the illocalis modus subsistendi of Christ's human nature, have sought, in their exposition of John 20, an opening in the closed doors, or a window, or an aperture in the roof or in the walls, in order to explain the possibility of Christ's appearance in the room where the disciples were assembled."

            Francis Pieper, Christian Dogmatics, 3 vols., St. Louis:  Concordia Publishing House, 1950, II, p. 127.