2 Samuel 17:1-3
The Death of Ahithophel
17:1 Ahithophel said to Absalom, “Let me pick out twelve thousand men. Then I will go and pursue David this very night.
17:2 When I catch up with him he will be exhausted and worn out. I will rout him, and the entire army that is with him will flee. I will kill only the king
17:3 and will bring the entire army back to you. In exchange for the life of the man you are seeking, you will get back everyone. The entire army will return unharmed.”