Just before this, Israel had descended into utter chaos with a string of rapid, violent king changes following the assassination of King Baasha. Omri, originally a military commander, seized the throne through another coup and established his own dynasty, but the text immediately emphasizes that his reign, though establishing a more stable line of succession, was marked by even deeper spiritual corruption than his predecessors. This verse sets the stage for the introduction of Omri's son, Ahab, and his infamous marriage to Jezebel, which would further plunge Israel into Baal worship.