Sent for Ahithophel. — Giloh, the city of Ahithophel, was one of the groups of towns just south of Hebron (Joshua 15:51), and Ahithophel may have gone there in readiness to be summoned by Absalom. Why he deserted David does not appear. It has been conjectured that he was aggrieved at David’s treatment of Bath-sheba, who is supposed to have been his granddaughter. Bath-sheba’s father was Eliam (2 Samuel 11:3) and Ahithophel had a son Eliam (2 Samuel 23:34), but there is no evidence that these were the same, and if they had been, Ahithophel probably would have felt honoured rather than aggrieved that his daughter should have been made queen. It is more likely that Ahithophel and many others of the tribe of Judah were alienated because, in the rapidly growing empire of David, their relative importance was of necessity constantly diminishing. It is noteworthy that the rebellion was cradled in Judah, and seems to have found there its chief strength.
There is a difference of opinion whether Psalms 41 was written on this occasion; but its ninth verse certainly applies very pointedly to Ahithophel; and his conduct, both in his treachery and his suicide, forms a striking parallel to that of Judas, to whom this verse is applied in John 13:18. Many writers also consider that Psalms 55 was composed with reference to Ahithophel.
While he offered sacrifices. — Absalom had arranged these, apparently with pomp and circumstance, to continue through several days. This gave time for the conspiracy to gain strength, and the accompanying feasting allowed Absalom an excellent opportunity for using his popular arts, and with such success that “the people increased continually with Absalom.”