2 Samuel 20:2

So every man of Israel, etc.; literally, so all the men of Israel went up from after David after Sheba. They had come down to Jordan to bring the king back in triumph, but, on finding that the men of Judah had forestalled them, they had a quarrel, and as no one endeavoured to allay it and mediate between them, it ended in open revolt, and they transferred their allegiance to the worthless Sheba. Nothing could more clearly prove the want of cohesion among the tribes, and how little Saul and David had done to knit them together. We need not, therefore, seek for any deep reasons of state, or for proofs of failure in David's government, to account for the rapid success of Absalom's rebellion. Israel was a confused mass of discordant elements, kept in a state of repulsion by the sturdy independence of the tribes and their jealousy one of another. Even David's victories had failed to infuse into them any feeling of national unity, nor did the long glory of Solomon's reign and the magnificence of the temple succeed better. The kings were not as yet much more than the judges had been—leaders in war, but with little authority in times of peace. What is so extraordinary is that David had lost the allegiance of his own tribe; and it now, on returning to its duty, spoiled by its violence the whole matter. The day must have been a great disappointment to David. He was to have gone back conducted gloriously by all the tribes of Israel; but he had fancied that Judah was holding back, and grieving over Absalom. He had secret dealing therefore with it, in order that the day might not be marred by its absence. It came, but only to do mischief; and David went home with only its escort, and with all the rest in open rebellion.