26:16Meaning
Strength, pride, and entering the temple Uzziah’s problem begins "when he was strong": his heart becomes lifted up, and this inner change leads into harmful action. The text describes his behavior as acting corruptly and as trespassing against Yahweh his God. The concrete act that expresses this trespass is that he goes into Yahweh’s temple in order to burn incense on the incense altar.
