1 Kings 12:29-32

CLV(i) 29 And he sets the one in Beth-El, and the other he has put in Dan, 30 and this thing becomes a sin, and the people go before the one--unto Dan. 31 And he makes the house of high places, and makes priests of the extremities of the people, who were not of the sons of Levi;" 32 and Jeroboam makes a festival in the eighth month, in the fifteenth day of the month, like the festival that [is] in Judah, and he offers on the altar--so did he in Beth-El--to sacrifice to the calves which he made, and he has appointed in Beth-El the priests of the high places that he made.