214. While a stern law existed according to which the Moabites and Ammonites were not admitted to the religious services, Ammonites and Moabites were saved, such as came to the kings of Judah to serve under them. Also Ruth, the mother and ancestress of our Saviour, was a Moabite. This is what I call uncovenanted mercy, no previous promise having rendered it certain.
215. Also Naaman, and the king of Nineveh, and Nebuchadnezzar, and Evilmerodach, and others from among the Gentiles, were saved by such uncovenanted mercy; for, unlike the Jews, they had no promise of Christ. In the same way, bodily safety is vouchsafed to Cain, and a wife with offspring, for the sake of the elect to be saved by uncovenanted mercy. For, although what we said of the Moabites is true of all his posterity, that it was to live under a curse, it is true, notwithstanding, that some of the patriarchs took their wives from the same.
V. 15a. And Jehovah said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold.
216. Jerome, in his Epistle to Damascus, contends that Cain had begged of the Lord that he might be slain, an opinion into which he rushes full sail, as it were, entertaining no doubt whatever concerning its truth. Lyra follows Jerome, and resolutely affirms that the context requires this interpretation. But this error of theirs should be laid at the door of the rabbins from whom they received it. The true sense of the passage is rather that everyone was prohibited from killing Cain. Judgment is pronounced here by God, and when he spares Cain's life and in addition permits him afterward to marry, it is done to stay its execution.
217. Moreover, how is it likely that an ungodly person asks death at the very time when God exercises judgment? Death is the very punishment of sin; therefore he flees and dreads death as the greatest part of his penalty. Away, therefore, with such vagaries of the rabbins! With these also Lyra's suggestion may safely be classed that the text ought to be divided and made to mean, Whoever shall kill Cain, shall surely meet with severe punishment. And when it is further stated, He shall be punished sevenfold, they would explain it as meaning that in the seventh degree—in the seventh generation—the punishment is to be inflicted.
218. Such vagaries are worthy of the rabbins after having cast away the light of the New Testament. However, they impose a double labor upon us, inasmuch as we are compelled to defend the text and to clear it of such corruptions, and to correct their absurd comments. If I quote them occasionally, it is to avoid the suspicion of proudly despising them, or of failing to read, and to give sufficient consideration to, their writings. While we read them intelligently, we do so with critical discrimination, and we do not permit them to obscure Christ, and to corrupt the Word of God.