Charles H. Spurgeon on Psalms 109:11

Let the extortioner catch all that he hath. Note: he is most miserable who falls into the hands of usurers; for they will flay him alive and drain his blood. The Romans, that they might deter the citizens from usury, placed a statue of Marsyas in the Forum or law court, by which they signified that those who came into the hands of usurers would be skinned alive; and to show that usurers, as the most unjust litigants, deserved hanging, they placed a rope in the hand of the figure. —Le Blanc.