2 Samuel 19:20

The first … of all the house of Joseph. Shimei, who was a Benjamite, could not have thus claimed to be the representative of the northern tribes, had he remained on the western bank, where "half the people of Israel" were assembled. Strictly, "the house of Joseph" signified the tribe of Ephraim ( 1:22 , 1:35 ; and comp. Psalms 78:67 ), and in this sense Shimei did not belong to it. But Ephraim claimed a supremacy over all Israel; and one cause of the opposition to David certainly was the transference of the leadership to the tribe of Judah. Even the long reign of Solomon failed to weld the tribes together, and as soon as the reins of power fell into the weak hands of Rehobeam, an Ephraimite. Jeroboam, whom Solomon had made "ruler ever all the charge of the house of Joseph" ( 1 Kings 11:28 ), quickly wrested the ten tribes from him. In Amos 5:6 "the house of Joseph" signifies all the northern tribes, for the reason given in 1 Chronicles 5:1 , 1 Chronicles 5:2 ; and such is its sense here. And Shimei compressed many powerful arguments in the phrase. For as a Benjamite he offered David the allegiance of the tribe which had given Israel its first king; while, as an Israelite, he professed also to represent the leading house of Ephraim, and all the northern tribes which usually followed its bidding.