Adam and Eve had two sons, Cain and Abel. Cain, when he got old enough, became a farmer, Abel a shepherd. They both brought gifts to God. Cain’s gift was fruit; Abel’s gift was the very best of his lambs. For some reason God liked Abel’s gift, but did not like Cain’s. This made Cain hate Abel so much that he killed him.

When God asked Cain what had become of his brother he said: “I know not: Am I my brother’s keeper?” But God, who sees everything, had seen what Cain had done and punished him by making him wander homeless and friendless over all the earth.