All my life I've been told that the tribe of Benjamin remained with the faithful tribe of Judah. And I've read the passage in 1 Kings 11:29-35 where the kingdom is split in two many times before, but never noticed this before today.
31 Then he told Jeroboam, “Take ten pieces, for this is what the Lord God of Israel says: ‘Look, I am about to tear the kingdom from Solomon’s hand and I will give ten tribes to you. 11:32 He will retain one tribe, for my servant David’s sake and for the sake of Jerusalem, the city I have chosen out of all the tribes of Israel. (1 Kings 11:31, 32)
Ten tribes go to Jeroboam. One tribe remains with the descendant of David (for David's sake). The passage repeats several times these numbers.
(I note that the numbers also only add up to 11. I am inferring that the tribe of Levi was out of the question here as they had not inherited a division of land upon entry. They were to serve throughout the area.)
Why has Benjamin been so often said to remain with Judah? Where did this tradition come from?