וּמֵֽאֱלֹהִ֗ים הָיְתָה֙ תְּבוּסַ֣ת אֲחַזְיָ֔הוּ לָב֖וֹא אֶל־יוֹרָ֑ם וּבְבֹא֗וֹ יָצָ֤א עִם־יְהוֹרָם֙ אֶל־יֵה֣וּא בֶן־נִמְשִׁ֔י אֲשֶׁ֣ר מְשָׁח֣וֹ יְהוָ֔ה לְהַכְרִ֖ית אֶת־בֵּ֥ית אַחְאָֽב׃
Now the downfall of Ahaziah was of God, in that he went unto Joram; for when he was come, he went out with Jehoram against Jehu the son of Nimshi, whom the LORD had anointed to cut off the house of Ahab.
Read halakhic rulings (Jewish law) on II Chronicles 22:7: and classical halakhic sources.