Proverbs 18:22

We will now look at how Absalsom’s life ended, which was very sad. It is recorded that Joab said, “I may not tarry thus with thee. And he took three darts in his hand, and thrust them through the heart of Absalom, while he was yet alive in the midst of the oak.

Now, David’s second lie was having the need to get a weapon, because he said the king required it to be done in a swift manner.