Link -> Complete Sermon for Trinity 14.
18. Now we must also examine the other part of this example of the nature of Christianity, love. The lepers have instructed us how to believe; Christ teaches us to love. Love does to our neighbor as it sees Christ has done to us, as he says in John 13:15: “For I have given you an example, that ye also should do as I have done to you.” And immediately afterwards he says in verse 34: “A new commandment I give unto you, that ye love one another; even as I have loved you, that ye also love one another. By this shall all men know that ye are my disciples, if ye have love one to another.”
What else does this mean than to say: Through me in faith you now have everything that I am and have: I am your own, you are now rich and satisfied through me; for all I do and love I do and love not for my but only for your sake, and I only think how to be useful and helpful to you, and accomplish whatever you need and should have. Therefore consider this example, to do to each other as I have done to you, and only consider how to be useful to your neighbor, and do what is useful and necessary for him.
Your faith has enough in my love and grace; so your love shall also give enough to others.
19. Behold, this is a Christian life, and in brief it does not need much doctrine nor many books, it is wholly contained in faith and love. Thus also says St. Paul, Galatians 6:2: “Bear ye one another’s burdens, and so fulfill the Law of Christ.” And to the Philippians 2:4 he says: “Not looking each of you to his own things, but each of you also to the things of others.” And there he gives us Christ as an example, 5:6: “Who existing in the form of God, counted not the being on an equality with God a thing to be grasped.” Who, although he was true God, yet became our servant and served us, and died a scandalous death for us. This Christian, free and joyful life has the evil spirit as its enemy, who with nothing else does such great injury as with the doctrines of men, as we shall hear. For truly the manner of a Christian’s life is briefly marked out in the words, have a good heart toward God and a good will toward your fellow man, here it consists entirely within us.
20. His good heart and faith naturally teach him how to pray. Yea, what is such faith, but pure prayer? It continually looks for divine grace, and if it looks for it, it also desires it with all the heart. And this desire is really the true prayer, that Christ teaches and God requires, which also obtains and accomplishes all things. And because it does not trust or seek comfort in self, its works or worthiness, but builds upon God’s pure grace, therefore whatever he believes, desires, hopes and prays, also comes to pass; so that the holy Prophet Zechariah justly calls the Spirit a Spirit of grace and of prayer, where God says, Zechariah 12:10: “And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the Spirit of grace and supplication.” Because faith recognizes and desires God’s favor without any intermission.
21. Again, love naturally teaches him how to do good works. For they alone are good works which serve your neighbor and are good. Yea, what is such love but only good deeds continually shown toward your neighbor, so that our work is called love, our faith is called prayer? Thus Christ speaks in John 15:12-13: “This is my commandment, that ye love one another, even as I have loved you. Greater love hath no man than this, that a man lay down his life for his friends.” As though he would say: So completely have I done all my works for your benefit, that I also gave my life for you, which is the greatest of all love, that is, the greatest work of love. If I had known a greater love, I would have manifested it to and for you. Therefore you should also love each other, and do all good deeds to one another. I require no more of you. I do not say you are to build for me churches, make pilgrimages, fast, sing, become monks or priests, or that you are to enter into this order or rank; but you do my will and service when you do good to each other, and no one cares for himself but for others, on this all entirely depends.
22. And these he calls “friends.” By this he does not mean that we should not love our enemies. For he says clearly: “Who lays down his life for his friends.” “His friends” are more than mere “friends.” It may come to pass that you are my friend, and yet I am not your friend, or I may love you and receive you as a friend and offer you my friendship, and yet you may hate me and remain my enemy. Just as Christ says to Judas in the garden: “Friend, do that for which thou art come.” Matthew 27:50. Judas was his friend, but Christ was Judas’ enemy, for Judas considered him his enemy and hated him. Christ loved Judas and esteemed him as his friend. It must be a free, perfect love and kindness toward every one.
23. See, this is what James means when he says, 2:26: “Faith apart from works is dead.” For as the body without the soul is dead, so is faith without works. Not that faith is in man and does not work, which is impossible. For faith is a living, active thing. But in order that men may not deceive themselves and think they have faith when they have not, they are to examine their works, whether they also love their neighbors and do good to them. If they do this, it is a sign that they have the true faith. If they do not do this, they only have the sound of faith, and it is with them as the one who sees himself in the glass and when he leaves it and sees himself no more, but sees other things, forgets the face in the glass, as James says in his first chapter, verses 23-24.