Baasha son of Ahijah was from the tribe of Issachar, and he made plans to kill Nadab. When Nadab and his army went to attack the town of Gibbethon in Philistia, Baasha killed Nadab there. So in the third year of Asa's rule, Baasha became king of Israel.
As soon as Zimri became king, he killed everyone in Baasha's family. Not one man or boy in his family was left alive—even his close friends were killed.
Zimri became king of Israel in Asa's twenty-seventh year as king of Judah, but he ruled only seven days from Tirzah. Israel's army was camped near Gibbethon in Philistia under the command of Omri. The soldiers heard that Zimri had killed Elah, and they made Omri their king that same day.
Zimri commanded half of Elah's chariots, and he made plans to kill Elah. One day, Elah was in Tirzah, getting drunk at the home of Arza, his prime minister,