1 Kings 12:32-33

Amplified Bible, Classic Edition

³² And Jeroboam appointed a feast on the fifteenth day of the eighth month, like the feast kept in Judah, and he offered sacrifices upon the altar. So he did in Bethel, sacrificing to the calves he had made. And he placed in Bethel the priests of the high places he had made.

³³ So he offered upon the altar he had made in Bethel on the fifteenth day of the eighth month, a date which he chose individually; and he appointed a feast for the Israelites and he went up to the altar to burn incense [in defiance of God’s law.]