The LORD said to Cain, "Where is Abel your brother?"
God does not inquire after sheep and cattle that have been slaughtered, but He does inquire after men who have been killed. Therefore men have the hope of resurrection and a God who leads them out of bodily death to eternal life, who inquires after their blood as after something precious, just as the psalm also says (116:15): "Precious is the death of His saints in His sight." This is the glory of the human race, which was won by the Seed when He crushed the serpent's head. This is the first example of that promise given to Adam and Eve, by which God shows that the serpent does not harm Abel even though it succeeds in having Abel killed. This is indeed why the serpent lies in wait for the heel of the woman's Seed. But while it bites, its head is crushed. Because of Abel's trust in the promised Seed, God inquired after Abel's blood when he was dead and showed that He is his God.