Following a military victory over Edom, Amaziah makes a highly surprising choice. Rather than discarding the beliefs of the defeated nation, he actively embraces their idol worship. He brings the gods of the people of Seir back with him to Judah simply because their specific method of worship appeals to him.
Taking this newfound devotion further, he establishes these foreign idols as his own gods, bowing before them and burning incense in their honor. This act of offering incense goes beyond a basic ritual; it represents a genuine feeling of closeness and brotherhood that he develops toward these idols [ביאור שטיינזלץ].