The second letter to Weller was presumably written some time in July. It reads as follows: "Grace and peace in Christ. My dearest Jerome, you must firmly believe that your affliction is of the devil, and that you are plagued in this manner because you believe in Christ. For you see that the most wrathful enemies of the Gospel, as, for instance, Eck, Zwingli, and others, are suffered to be at ease and happy. All of us who are Christians must have the devil for our adversary and enemy, as Peter says: 'Your adversary, the devil, goeth about,' etc., 1 Pet. 5, 8. Dearest Jerome, you must rejoice over these onslaughts of the devil, because they are a sure sign that you have a gracious and merciful God. You will say: This affliction is more grievous than I can bear; you fear that you will be overcome and vanquished, so that you are driven to blasphemy and despair. I know these tricks of Satan: if he cannot overcome the person whom he afflicts at the first onset, he seeks to exhaust and weaken him by incessantly attacking him, in order that the person may succumb and acknowledge himself beaten. Accordingly, whenever this affliction befalls you, beware lest you enter into an argument with the devil, or muse upon these death-dealing thoughts. For this means nothing else than to yield to the devil and succumb to him. You must rather take pains to treat these thoughts which the devil instils in you with the severest contempt. In afflictions and conflicts of this kind contempt is the best and easiest way for overcoming the devil. Make up your mind to laugh at your adversary, and find some one whom you can engage in a conversation. You must by all means avoid being alone, for then the devil will make his strongest effort to catch you; he lies in wait for you when you are alone. In a case like this the devil is overcome by scorning and despising him, not by opposing him and arguing with him. My dear Jerome, you must engage in merry talk and games with my wife and the rest, so as to defeat these devilish thoughts, and you must be intent on being cheerful. This affliction is more necessary to you than food and drink. I shall relate to you what happened to me when I was about your age. When I entered the cloister, it happened that at first I always walked about sad and melancholy, and could not shake off my sadness. Accordingly, I sought counsel and confessed to Dr. Staupitz, --I am glad to mention this man's name. I opened my heart to him, telling him with what horrid and terrible thoughts I was being visited. He said in reply: Martin, you do not know how useful and necessary this affliction is to you; for God does not exercise you thus without a purpose. You will see that He will employ you as His servant to accomplish great things by you. This came true. For I became a great doctor--I may justly say this of myself--; but at the time when I was suffering these afflictions I would never have believed that this could come to pass.