אָ֧ז יֵחָלֵ֛ק הָעָ֥ם יִשְׂרָאֵ֖ל לַחֵ֑צִי חֲצִ֨י הָעָ֜ם הָ֠יָה אַחֲרֵ֨י תִבְנִ֤י בֶן־גִּינַת֙ לְהַמְלִיכ֔וֹ וְהַחֲצִ֖י אַחֲרֵ֥י עָמְרִֽי׃
Then were the people of Israel divided into two parts: half of the people followed Tibni the son of Ginath, to make him king; and half followed Omri.
Read midrashic interpretation of I Kings 16:21: and classical rabbinic exegesis.