To his city — To Giloh. Ahithophel was likely motivated by deep humiliation at the slight of his counsel being rejected. He is a memorable e…

And hanged himself. —Ahithophel was moved, not merely by chagrin at the rejection of his counsel, but was shrewd enough t…

And when Ahithophel saw that his counsel was not followed ,
&c.] But that of Hushai:

he saddled […

Ahithophel hanged himself out of frustration that his counsel was not followed. That which will break a proud man's heart will not break a humble m…