The offering of [the body] is called a spiritual sacrifice because it is freely sacrificed through the Spirit, the Christian being uninfluenced by the constrainst of the Low or the fear of hell.
Martin LutherIf God had not permitted the people of Jerusalem to be torn asunder and driven them from the land, but had let them keep it after before, no one could convince them that they are not God`s chosen people.
Martin LutherThis is the good and happy news, that Christ has paid for our sin, and through His suffering has redeemed us from eternal death. It is His kingdom and His ministry, to preach the Gospel to the poor; that is His purpose. For to the great and holy He cannot come. They do not wish to be counted sinners, and therefore do not need His Gospel.
Martin LutherGod foreknows nothing by contingency, but that He foresees, purposes, and does all things according to His immutable, eternal, and infallible will. By this thunderbolt, "Free-will" is thrown prostrate, and utterly dashed to pieces.
Martin LutherThe devil is not only a liar, but also a murderer, he constantly seeks our life, and wreaks his anger whenever he can afflict our bodies with misfortune and harm. Hence it comes that he often breaks men's necks or drives them to insanity, drowns some, and incites many to commit suicide, and to many other terrible calamities. Therefore there is nothing for us to do upon earth but to pray against this arch enemy without ceasing. For unless God preserved us, we would not be safe from him even for an hour.
Martin LutherI [i.e., God] have given you baptism as a gift for the forgiveness of sins, and preach to you unceasingly by word of mouth concerning this treasure, sealing it with the Sacrament of my body and blood, so that you need never doubt. True, it seems little and insignificant that by the washing of water, the Word, and the Sacrament this should all be effected. But don't let your eyes deceive you.
Martin Luther