So when all Israel saw that the king hearkened not unto them, the people answered the king, saying, What portion have we in David? neither have we inheritance in the son of Jesse: to your tents, O Israel: now see to thine own house, David. So Israel departed unto their tents. (1 Kings 12:16)
The words breathe the spirit of tribal jealousy and enmity. Ephraim was arrayed against Judah; the people of the north were determined to go their way independent of the south. Sheba employed similar words in his rebellion against David (2 Sam. 20:1).
To your tents.
This was not necessarily a war cry, but it was a call for everyone to return to his tribe and home without acknowledging Rehoboam.
See to thine own house.
This is an expression of the deeply rooted dislike to David’s royal house. Let that house see about its own affairs and its own tribe, and leave the rest of Israel alone. They will take care of themselves independently of Judah, and will henceforth brook no interference.