21 That is not so. But a man from the mountains of Ephraim, Sheba the son of Bichri by name, has raised his hand against the king, against David. Deliver him only, and I will depart from the city." So the woman said to Joab, "Watch, his head will be thrown to you over the wall."
Matthew Henry's Commentary on 2 Samuel 20:21
Commentary on 2 Samuel 20:14-22
(Read 2 Samuel 20:14-22)
Justly is that place attacked, which dares to harbour a traitor; nor will the heart fare better which indulges rebellious lusts, that will not have Christ to reign over them. A discreet woman, by her prudent management, satisfied Joab, and yet saved the city. Wisdom is not confined to rank or sex; it consists not in deep knowledge; but in understanding how to act as matters arise, that troubles may be turned away and benefits secured. A great deal of mischief would be prevented, if contending parties would understand one another. Let both sides be undeceived. The single condition of peace is, the surrender of the traitor. It is so in God's dealing with the soul, when besieged by conviction and distress; sin is the traitor; the beloved lust is the rebel: part with that, cast away the transgression, and all shall be well. There is no peace on any other terms.