2 Samuel 20:15-22

Verse 15

They cast up a bank against the city - The word סללה solelah, which we render bank, means, most probably, a battering engine of some kind, or a tower overlooking the walls, on which archers and slingers could stand and annoy the inhabitants, while others of the besiegers could proceed to sap the walls. That it cannot be a bank that stood in the trench, is evident from the circumstance thus expressed.
Verse 16

A wise woman - She was probably governess.
Verse 18

They shall surely ask counsel at Abel - This is a proverb, but from what it originated we know not; nor can we exactly say what it means: much must be supplied to bring it to speak sense. Abel was probably famed for the wisdom of its inhabitants; and parties who had disputes appealed to their judgment, which appears to have been in such high reputation as to be final by consent of all parties. To this the wise woman refers, and intimates to Joab that he should have proceeded in this way before he began to storm the city, and destroy the peaceable inhabitants.
Verse 19

I - peaceable and faithful in Israel - I am for peace, not contention of any kind; I am faithful - I adhere to David, and neither seek nor shall sanction any rebellion or anarchy in the land. Why then dost thou proceed in such a violent manner? Perhaps the woman speaks here in the name and on behalf of the city: "I am a peaceable city, and am faithful to the king."

A mother in Israel - That is, a chief city of a district; for it is very likely that the woman speaks of the city, not of herself.
Verse 21

His head shall be thrown to thee - Thus it appears she had great sway in the counsels of the city; and that the punishment of a state rebel was then, what it is now in this kingdom, beheading.
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