John Gill Commentary 2 Samuel 18:12

"And the man said unto Joab, Though I should receive a thousand [pieces of] silver in my hand, yet would I not put forth my hand against the king`s son; for in our hearing the king charged thee and Abishai and Ittai, saying, Beware that none touch the young man Absalom." — 2 Samuel 18:12 (ASV)

And the man said to Joab
Disdaining his proposal:

though I should receive a thousand [shekels] of silver in my hand ;
or such a sum should be offered to me; the Arabic version is a million;

[yet] would I not put forth my hand against the king's son ;
to smite him, and slay him:

for in our hearing the king charged you, and Abishai, and Ittai ;
his three generals:

saying, beware that none [touch] the young man Absalom ;
so as to slay him; they were charged to abstain from it themselves, and to watch and observe others, and keep them from doing it.