2 Chronicles 26:18-19
26:18 They confronted King Uzziah and said to him, “It is not proper for you, Uzziah, to offer incense to the Lord. That is the responsibility of the priests, the descendants of Aaron, who are consecrated to offer incense. Leave the sanctuary, for you have disobeyed and the Lord God will not honor you!”
26:19 Uzziah, who had an incense censer in his hand, became angry. While he was ranting and raving at the priests, a skin disease appeared on his forehead right there in front of the priests in the Lord’s temple near the incense altar.