I Apologize

I owe my pastor and my Sunday School class an apology which I will deliver in person at the beginning of my next class.  A month or so ago I asked the question "Which tribes belonged to the Southern Kingdom of Israel"? The pastor gave the correct answer but I stated the correct answer as Rueben, Gad, and the half tribe of Manasseh which is incorrect.  Those tribes and half tribe are the peoples of Israel that did not cross over the river Jordon when Israel entered the Promised Land.  The correct answer, as stated by the pastor, was indeed Judah and Benjamin.