The incompatibility of the two lines and the persecuting spirit of the godless are set forth by the after history of Cain and Abel. The one line is represented in Cain, who with all his energy and indomitable courage, is depicted as of a dark, morose, suspicious, jealous, violent temper; a man born under the shadow of the fall. Abel is described in contrast as guileless and sunny, free from harshness and resentment. What was in Cain was shown by what came out of him, murder. The reason of the rejection of his offering was his own evil condition of heart. "If thou doest well, shalt not thou also be accepted;" implying that he was not accepted because he was not doing well. His offering was a mere form; he complied with the fashion of the family; but in spirit he was alienated from God, cherishing thoughts which the rejection of his offering brings to a head. He may have seen that the younger son won more of the parents' affection, that his company was more welcome. Jealousy had been produced, that deep jealousy of the humble and godly which proud men of the world cannot help betraying and which has so very often in the world's history produced persecution. This cannot be considered too weak a motive to carry so enormous a crime. Even in a highly civilised age we find an English statesman saying: "Pique is one of the strongest motives in the human mind. Fear is strong but transient. Interest is more lasting, perhaps, and steady, but weaker; I will ever back pique against them both. It is the spur the devil rides the noblest tempers with, and will do more work with them in a week, than with other poor jades in a twelve-month." And the age of Cain and Abel was an age in which impulse and action lay close together, and in which jealousy is notoriously strong. To this motive John ascribes the act: "Wherefore slew he him? Because his own works were evil, and his brother's righteous."