112. Let us learn, then, to know a Cain and especially to beware when he speaks kindly, and as brother to brother. For it is in this way that our adversaries, the bishops and the pope, talk with us in our day, while they pretend a desire for concord, and seek to bring about doctrinal harmony. In reality, if an opportunity of seizing us and executing their rage upon us should present itself, you would soon hear them speak in a very different tone. Truly, "there is death in the pot," 2 Kings 4, 40; and under the best and sweetest words there lies concealed a deadly poison.
V. 8b. And it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.
113. Here you see the deceptive character of those alluring words. Cain had been admonished by his father with divine authority to guard against sin in the future, and to expect pardon for that of the past. But Cain despises the twofold admonition, and indulges his sin, as all the wicked do. For true is the saying of Solomon, "When the wicked cometh, there cometh also contempt, and with ignominy cometh reproach," Prov 18, 3.
114. Our ministry at the present day deserves no blame. We teach, we exhort, we entreat, we rebuke, we turn ourselves every way, that we may recall the multitude from security to the fear of God. But the world, like an untamed beast, still goes on and follows not the Word, but its own lusts, which it tries to smooth over by a show of uprightness. The prophets and the apostles stand before us as examples, and our own experience is instructive, also. Our adversaries, so often warned and convicted, know they are doing wrong, and yet they do not lay aside their murderous hate.
115. Learn, then, what a hypocrite is; namely, one who lays claim to the worship of God and to charity, and yet, at the same time, destroys the worship of God and slaughters his brother. And all this semblance of good-will is only intended to bring about better opportunities of doing harm. For, if Abel had foreseen the implacable wrath and the truly diabolical anger, he would have saved himself by flight. But as Cain betrayed no such anger, uttered a friendly greeting and manifested his usual courtesy, Abel perished before he felt any fear.
116. There is no doubt that Abel, when he saw his brother rising up against him, entreated and implored him not to pollute himself with this awful sin. However, a mind beset by Satan pays no regard to entreaties, nor heeds uplifted hands, but as a father's admonition had been disregarded, so now the brother is spurned as he pleads upon his knees.