This Gospel teaches us to note particularly the good tidings which God has granted us, that we may here on earth say to each other, “Thy sins are forgiven thee,” so that with the people here spoken of we may marvel and glorify God, Which had given such power unto men. And it is indeed a great power that one Christian may say to another: My brother, be of good cheer, you have a gracious God; only believe the assurance which I give you in Christ’s name and it is as certain as if God Himself had said to you, Thy sins are forgiven thee. Such power, as we hear, originated in Christ and is now given unto men, especially to those who are in office and are commanded to preach the Gospel, that is, repentance and forgiveness of sins, in Jesus’ name. Other Christians, although they are not in that office, also have the command, in case of necessity, to comfort you when you are troubled on account of your sins, and to say: Why are you troubled? I, as a Christian, assure you that you are wronging yourself; God is not unmerciful unto you. You are for Christ’s sake to put all your trust in His grace. You are to comfort yourself as surely with these words as if Christ spake them in person from heaven. (Luther’s House Postil, Sermon for the Nineteenth Sunday after Trinity, Volume 3, p. 831-832)