2 Samuel 18: 9 - 10, 14, 24 - 25, 30 - 33
9 And Ab'salom chanced to meet the servants of David. Ab'salom was riding upon his mule, and the mule went under the thick branches of a great oak, and his head caught fast in the oak, and he was left hanging between heaven and earth, while the mule that was under him went on.
10 And a certain man saw it, and told Jo'ab, "Behold, I saw Ab'salom hanging in an oak."
14 Jo'ab said, "I will not waste time like this with you." And he took three darts in his hand, and thrust them into the heart of Ab'salom, while he was still alive in the oak.
24 Now David was sitting between the two gates; and the watchman went up to the roof of the gate by the wall, and when he lifted up his eyes and looked, he saw a man running alone.
25 And the watchman called out and told the king. And the king said, "If he is alone, there are tidings in his mouth." And he came apace, and drew near.
30 And the king said, "Turn aside, and stand here." So he turned aside, and stood still.
31 And behold, the Cushite came; and the Cushite said, "Good tidings for my lord the king! For the LORD has delivered you this day from the power of all who rose up against you."
32 The king said to the Cushite, "Is it well with the young man Ab'salom?" And the Cushite answered, "May the enemies of my lord the king, and all who rise up against you for evil, be like that young man."
33 And the king was deeply moved, and went up to the chamber over the gate, and wept; and as he went, he said, "O my son Ab'salom, my son, my son Ab'salom! Would I had died instead of you, O Ab'salom, my son, my son!"

EWTN