It is noteworthy that the first recorded question in Scripture was by man’s first murderer. After lying to God about his brother’s whereabouts, Cain shrugs “Am I my brother’s keeper?” To get a sense of the chutzpah, think of the modern slack-jawed youth who rolls his eyes at his parents and sneers, “Whatever.”
Cain’s reaction to a probing God stands in dramatic contrast with that of his parents. Whereas Adam and Eve tried to cover their guilt with fig leaves, pleading they were victims of deceit, Cain tried to cover his with deceit pleading ignorance of his guilt. His whole posture suggests a staggering level of arrogance.
But annoyance with a watchful God is something we saw coming. Earlier, when God counseled him about his sacrifice and attitude, Cain seethed with anger at being reminded of his creatureliness. And things are no different today.