10. the voice of thy brother's blood crieth unto me—Cain, to lull suspicion, had probably been engaging in the solemnities of religion when he was challenged directly from the Shekinah itself.

     11, 12. now art thou cursed from the earth—a curse superadded to the general one denounced on the ground for Adam's sin.

     18. my blood—that is, my undeserved suffering. He compares himself to one murdered, whose blood the earth refuses to drink up until he is avenged (Ge 4:10, 11; Eze 24:1, 8; Isa 26:21). The Arabs say that the dew of heaven will not descend on a spot watered with innocent blood (compare 2Sa 1:21).

     7. upon the top of a rock—or, "the dry, bare, exposed rock," so as to be conspicuous to all. Blood poured on a rock is not so soon absorbed as blood poured on the earth. The law ordered the blood even of a beast or fowl to be "covered with the dust" (Le 17:13); but Jerusalem was so shameless as to be at no pains to cover up the blood of innocent men slain in her. Blood, as the consummation of all sin, presupposes every other form of guilt.

     8. That it might cause—God purposely let her so shamelessly pour the blood on the bare rock, "that it might" the more loudly and openly cry for vengeance from on high; and that the connection between the guilt and the punishment might be the more palpable. The blood of Abel, though the ground received it, still cries to heaven for vengeance (Ge 4:10, 11); much more blood shamelessly exposed on the bare rock.