Charles Ellicott Commentary 2 Chronicles 26:19

"Then Uzziah was wroth; and he had a censer in his hand to burn incense; and while he was wroth with the priests, the leprosy brake forth in his forehead before the priests in the house of Jehovah, beside the altar of incense." — 2 Chronicles 26:19 (ASV)

Then. — Meaning "And."

Was angry. — This refers to Zaʻaf, that is, foamed with anger.

And had. — This refers to the phrase And in his hand was a censer (Ezekiel 8:11).

Even. — Omit this word.

Rose up. — This refers to Zarah. The word is not used in this sense elsewhere.

From beside — that is, near, close by.

Uzziah’s punishment was the same as that which fell upon Miriam (Numbers 12:10) and Gehazi (2 Kings 5:27). Thenius, while asserting the historical character of Uzziah’s invasion of the sanctuary, declares that the chronicler has followed traditional exegesis in making the king’s leprosy a judgment upon his offense. In any case, we may be sure that the chronicler has given the story as he found it in the history of Uzziah, to which he alludes in 2 Chronicles 26:22.

In Josephus, the story is further embellished with the statements that the great earthquake mentioned in Amos 1:1 happened at the moment Uzziah threatened the opposing priests, and that a ray of sunlight, falling upon the king’s face through the Temple roof which was split by the shock, produced the leprosy. (Zechariah 14:4–5.)