1 Kings 12:27-33

27If these people go up to offer sacrifices in the Lord’s temple in Jerusalem, their loyalty could shift to their former master, King Rehoboam of Judah. They might kill me and return to King Rehoboam of Judah.”

28After the king had consulted with his advisers, he made two golden calves. Then he said to the people, “It is too much trouble for you to go up to Jerusalem. Look, Israel, here are your gods who brought you up from the land of Egypt.”

29He put one in Bethel and the other in Dan.

30This caused Israel to sin; the people went to Bethel and Dan to worship the calves.

31He built temples on the high places and appointed as priests people who were not Levites.

32Jeroboam inaugurated a festival on the fifteenth day of the eighth month, like the festival celebrated in Judah. On the altar in Bethel he offered sacrifices to the calves he had made. In Bethel he also appointed priests for the high places he had made.

33On the fifteenth day of the eighth month (a date he had arbitrarily chosen) Jeroboam offered sacrifices on the altar he had made in Bethel. He inaugurated a festival for the Israelites and went up to the altar to offer sacrifices.