The foresight to realize the consequences

2 Samuel 17:15-29
Meanwhile, in an episode that recalls Joshua 2 and Rahab's saving of the two spies, Jonathan and Ahimaaz (on the way to David with the information) escape discovery through a woman's protective action.
Their warning gives the king just enough time to escape: to a warm welcome and a good meal, at last, for his famished斷炊 men.
Mahaniam: A city belonging to Gad, east of the Jordan, in Gilead.
Amasa: His mother Abigail was David's half-sister. Joab was his cousin.
Why?
Ahithophel has the foresight to realize the probable consequences - hence his suicide.
How?
Who has the foresight to realize the consequences is the wise man. The consequences of sin is dead!