וַאֲחַזְיָ֤ה מֶֽלֶךְ־יְהוּדָה֙ רָאָ֔ה וַיָּ֕נָס דֶּ֖רֶךְ בֵּ֣ית הַגָּ֑ן וַיִּרְדֹּ֨ף אַחֲרָ֜יו יֵה֗וּא וַ֠יֹּאמֶר גַּם־אֹת֞וֹ הַכֻּ֣הוּ אֶל־הַמֶּרְכָּבָ֗ה בְּמַֽעֲלֵה־גוּר֙ אֲשֶׁ֣ר אֶֽת־יִבְלְעָ֔ם וַיָּ֥נָס מְגִדּ֖וֹ וַיָּ֥מָת שָֽׁם׃
But when Ahaziah the king of Judah saw this, he fled by the way of the garden-house. And Jehu followed after him, and said: ‘Smite him also in the chariot’; [and they smote him] at the ascent of Gur, which is by Ibleam. And he fled to Megiddo, and died there.
Ibn Ezra
אתו Him is added, although את is before the noun, as in many instances; or it means Him alone.23The repetition is explained as a sign of emphasis. Comp. Gen. 47:21; 1 Sam. 25:29; 2 Kings 9:27; Neh. 9:29. You shall sanctify. That which is holy is usually revered by men; comp. for he is a man of God, he is holy (2 Kings 4:9).