2 Chronicles 26:18

18They warned King Uzziah. They said to him, ‘It is not right for you, Uzziah, to offer incense to the Lord. Only the priests, Aaron's descendants, may do that. They are the people that God has chosen to offer incense to him. So you must leave this Holy Place because you have done something that is wrong. As a result, the Lord God will not give you any honour.’