I Kings 15:32 Midrash

וּמִלְחָמָ֨ה הָיְתָ֜ה בֵּ֣ין אָסָ֗א וּבֵ֛ין בַּעְשָׁ֥א מֶֽלֶךְ־יִשְׂרָאֵ֖ל כָּל־יְמֵיהֶֽם׃ (פ)

And there was war between Asa and Baasa king of Israel all their days.

Read midrashic interpretation of I Kings 15:32: and classical rabbinic exegesis.