John Gill Commentary 2 Samuel 19:10

"And Absalom, whom we anointed over us, is dead in battle. Now therefore why speak ye not a word of bringing the king back?" — 2 Samuel 19:10 (ASV)

And Absalom, whom we anointed over us
To be king; which either was really done by Absalom's party, or in effect by proclaiming and appointing him king:

is dead in battle ;
which shows the thing was not of God, and by which means they were released from their oath of allegiance to him:

now therefore why speak you not a word of bringing the king back ?
nobody speaks of it, gives the least hint of it, or shows any concern about it; but the greatest coldness and indifference, as if it was a matter of no importance.