TSK
Treasury of Scripture Knowledge references in NET.
The king gave this order to Joab, Abishai, and Ittai:“For my sake deal gently with the young man Absalom.” Now the entire army was listening when the king gave all the leaders this order concerning Absalom.
Joab replied,“I will not wait around like this for you!” He took three spears in his hand and thrust them into the middle of Absalom while he was still alive in the middle of the oak tree.
(19:1) The king then became very upset. He went up to the upper room over the gate and wept. As he went he said,“My son, Absalom! My son, my son, Absalom! If only I could have died in your place! Absalom, my son, my son!”