2 Samuel 20:18 Meaning

16Then cried a wise woman out of the city, Hear, hear; say, I pray you, unto Joab, Come near hither, that I may speak with thee.

17And when he was come near unto her, the woman said, Art thou Joab? And he answered, I am he. Then she said unto him, Hear the words of thine handmaid. And he answered, I do hear.

18Then she spake, saying, They were wont to speak in old time, saying, They shall surely ask counsel at Abel: and so they ended the matter.

19I am one of them that are peaceable and faithful in Israel: thou seekest to destroy a city and a mother in Israel: why wilt thou swallow up the inheritance of the LORD?

20And Joab answered and said, Far be it, far be it from me, that I should swallow up or destroy.