We read in 2 Samuel 19:39–43 that when David and his troops crossed the Jordan and arrived at Gilgal where they were met by a throng of citizens from both Judah (the southern two tribes) and Israel (the northern twelve tribes). Israel was upset that the Judeans claimed David as one of their own to the exclusion of the other tribes (2 Samuel 19: 41).
When the Judeans replied that David was part of their own flesh (2 Samuel 19: 42), the Israelite counter-response was that there were 10 tribes of them and therefore their claim was much more weighty. Besides, they said, they had been the first to insist that David return to rule over the nation (2 Samuel 19:43).
This argument reveals the fickleness of the people who had first acquiesced in, if not actively supported, the rebellion of Absalom and now clamored to be first to welcome David back. But it also indicates the depth of the schism which was developing between Israel and Judah, a rift which eventually produced two separate kingdoms.