5. For the fruit of faith is peace; not only that which one has outwardly, but that of which Paul speaks to the Philippians (Philippians 4:7) saying it is a peace that passeth all reason, sense and understanding. And where this peace is, one shall not and cannot judge according to reason. This we shall see still farther in our Gospel lesson.
6. First, the disciples sit there behind barred doors in great fear of the Jews, afraid to venture outside, with death staring them in the face. Outwardly they indeed have peace, no one is doing them any harm; but inwardly their hearts are troubled, and they have neither peace nor rest. Amid their fear and anguish the Lord comes, quiets their hearts and makes them glad, so that their fear is removed, not by removing the danger, but in that their hearts were no more afraid. For thereby the malice of the Jews is not taken away, nor changed; they rave and rage as before, and outwardly everything remains the same. But they are changed inwardly, receiving such boldness and joy as to declare: “We have seen the Lord.” Thus he quiets their hearts, so that they become cheerful and fearless, not caring how the Jews rage.
7. This is the true peace that satisfies and quiets the heart; not in times when no adversity is at hand, but in the midst of adversity, when outwardly there is nothing but strife before the eyes. And this is the difference between worldly and spiritual peace. Worldly peace consists in removing the outward evil that disturbs the peace; as when the enemies besiege a city there is no peace; but when they depart peace returns. Such is the case with poverty and sickness. While they afflict you, you are not contented; but when they are removed and you are rid of the distress, there is peace and rest again from without. But he who experiences this is not changed, being just as fainthearted whether the evil be present or not; only he feels it and is frightened when it is present.
8. Christian or spiritual peace, however, just turns the thing about, so that outwardly the evil remains, as enemies, sickness, poverty, sin, death and the devil. These are there and never desist, encompassing us on every side; nevertheless, within there is peace, strength and comfort in the heart, so that the heart cares for no evil, yea, is really bolder and more joyful in its presence than in its absence. Therefore it is peace which passeth and transcendeth all understanding and all the senses. For reason can not grasp any peace except worldly or external peace, for it can not reconcile itself to it nor understand how that is peace if evil is present, and it knows not how to satisfy and comfort a person; hence it thinks if the evil depart, peace departs also. When however the Spirit comes, he lets outward adversity remain, but strengthens the person, making the timid fearless, the trembling bold, changing the troubled into a quite, peaceful conscience, and such an one is bold, fearless and joyful in things by which all the world otherwise is terrified.
9. Whence does he receive this? From his faith in Christ. For if I truly believe in the Lord from the real depth of my heart, that my heart can truly say: My Lord Christ has by his resurrection conquered my need, my sin, death and all evil, and will be thus with and in me, so that body and soul shall want nothing, that I shall have all I need, and no evil shall harm me: if I believe this, it is impossible for me to be faint-hearted and timid no matter how much sin and death oppress me. For faith is ever present and says:
Does sin burden you, does death terrify you, look to Christ who died for your sake and rose again, and conquered every evil; what can harm you?
Why will you then fear? So also in case other misfortunes burden you, as sickness or poverty, turn your eyes from it, lock the door to reason and cast yourself upon Christ and cleave to him, so shall you be strengthened and comforted. If you look to Christ and believe on him, no evil that may befall you is so great that it can harm you and cause you to despair.
Therefore it is impossible for this fruit to remain outside, where faith is, so that peace does not follow.
