But the followers of Omri proved stronger than those of Tibni son of Ginath. So Tibni died and Omri became king.
Solomon observes (Pro 28:2) that for the transgression of a land many were the princes thereof (so it was here in Israel), but by a man of understanding the state thereof shall be prolonged - so it was with Judah at the same time under Asa. When men forsake God they are out of the way of rest and establishment.
Commenting on 1 Kings 16:15-28
Now the rest of the acts of Omri, which he did, and his might which he showed, are they not written in the book of the chronicles of the kings of Israel? Where those of the preceding kings were written, see Kg1 14:19. . 1 Kings 16:28 kg1 16:28 kg1 16:28 kg1 16:28So Omri slept with his fathers,....
Tibni died--The Hebrew does not enable us to determine whether his death was violent or natural.