Put his household in order - This self-murder could not be called lunacy, as every step to it was deliberate. He foresaw Absalom's ruin; and he did not choose to witness it, and share in the disgrace: and he could expect no mercy at the hands of David. He was a very bad man, and died an unprepared and accursed death.
To his city - To Giloh (marginal reference). Ahithophel was probably influenced by deep mortification at the slight put upon him by rejecting his counsel. He is a memorable example of the impotence of worldly wisdom. Compare the marginal reference.