Divrey Hayamim Bais 26:18

18 And they stood up against Uziyahu HaMelech, and said unto him, It is not for you, Uziyahu, to burn ketoret unto Hashem, but to the Kohanim the Bnei Aharon, that are hamekudashim (consecrated and ritually pure) to burn ketoret. Go out from the Mikdash, for thou hast been treacherous; neither shall it be for thine kavod (honor) from Hashem Elohim.

Divrey Hayamim Bais 26:18 Meaning and Commentary

2 Chronicles 26:18

And they withstood Uzziah the king
They not only stood against him, but stood about him, surrounded him, so as to hinder him from approaching the altar of incense:

and said unto him, it appertaineth not unto thee, Uzziah, to burn
incense unto the Lord;
it did not belong to his office as a king, it was no part of it

but to the priests the sons of Aaron, that are consecrated to burn
incense;
and to them only; for even the Levites might not do it, only those of the tribe of Levi, that descended from Aaron, see ( Numbers 16:35 ) ,

go out of the sanctuary, for thou hast trespassed;
by going into that:

neither shall it be for thine honour from the Lord God;
but to his hurt, and be a brand of infamy upon him; for more is designed than is expressed, and as the event showed.

Divrey Hayamim Bais 26:18 In-Context

16 But when he became powerful, his lev was lifted up to his downfall, for he was unfaithful against Hashem Elohav, and he entered into the Heikhal Hashem to burn ketoret upon the Mizbe’ach HaKetoret.

17 And Azaryahu HaKohen went in after him, and with him shemonim Kohanim of Hashem, that were men of courage.

18 And they stood up against Uziyahu HaMelech, and said unto him, It is not for you, Uziyahu, to burn ketoret unto Hashem, but to the Kohanim the Bnei Aharon, that are hamekudashim (consecrated and ritually pure) to burn ketoret. Go out from the Mikdash, for thou hast been treacherous; neither shall it be for thine kavod (honor) from Hashem Elohim.

19 Then Uziyahu became angry, and had a mikteret (censer) in his yad to burn ketoret, and while he was raging with the Kohanim, the tzara’at even broke out on his metzach (forehead) before the Kohanim in the Beis Hashem, near the Mizbe’ach HaKetoret.

20 And Azaryahu the Kohen HaRosh, and all the Kohanim, looked upon him, and, hinei, he was leprous on his metzach, and they thrust him out from there; yea, he himself hasted also to go out, because Hashem nun-gimmel-ayin-vav [had smitten him, afflicted him, see Isaiah 53:8, 10 where Hashem has the "nega" fall on not on this Ben Dovid Uziyahu, but on Moshiach Ben Dovid].