Surah 5. Al-Ma'ida, Ayah 27

I.e., the story of Cain and Abel, mentioned in Genesis iv, 1-16. The pronoun in "tell them" refers to the followers of the Bible, and obviously connects with verse {15} of this surah, "Now there has come unto you Our Apostle, to make clear unto you much of what you have been concealing [from yourselves] of the Bible", the meaning of which has been explained in note [28] above. The moral of this particular Biblical story - a moral which the followers of the Bible have been "concealing from themselves" - is summarized in verse {32}.

Literally; "recite to them in truth the story", etc. The point is that the story in Gen. iv. 1-15 is a bare narrative, not including the lessons now to be enforced. The Prophet is told now to supply the truth of the matter, the details that will enforce the lessons.

The two sons of Adam were Habil (in the English Bible, Abel) and Qabil (in English, Cain). Cain was the elder, and Abel the younger,-the righteous and innocent one. Presuming on the right of the elder, Cain was puffed up with arrogance and jealousy, which led him to commit the crime of murder. Among the Christians, Cain was the type of the Jew as against Abel the Christian. The Jew tried to kill Jesus and exterminate the Christian. In the same way, as against Muhammad, the younger brother of the Semitic family, Cain was the type of the Old Testament and New Testament people, who tried to resist and kill Muhammad and put down his people.