How Eskimos Kill Wolves

The consuming, self-destructive nature of sin is like the technique used by Eskimos to kill wolves. First, the Eskimo coats his knife blade with animal blood and allows it to freeze. Then he adds another layer of blood, and another, until the blade is completely concealed in a block of frozen blood.
Next the hunter fixes his knife in the ground with the blade up. When a wolf follows his sensitive nose to the source of the scent and discovers the bait, he licks it, tasting the fresh frozen blood. He begins to lick faster, more and more vigorously, lapping the blade until the keen edge is bare. Feverishly now, harder and harder the wolf licks the blade in the arctic night. So great becomes his craving for blood that the wolf does not notice the razor-sharp sting of the naked blade on his own tongue, nor does he realize that his insatiable thirst is being satisfied by his own blood. He just craves more and more until he drops dead in the snow.
We are consumed, the Bible warns, by our own lusts.