1Kings 12:24 Thus saith the LORD, Ye shall not go up, nor fight against your brethren the children of Israel: return every man to his house; for this thing is from me. They hearkened therefore to the word of the LORD, and returned to depart, according to the word of the LORD.

1Kings 12:25 Then Jeroboam built Shechem in mount Ephraim, and dwelt therein; and went out from thence, and built Penuel. 26 And Jeroboam said in his heart, Now shall the kingdom return to the house of David: 27 If this people go up to do sacrifice in the house of the LORD at Jerusalem, then shall the heart of this people turn again unto their lord, even unto Rehoboam king of Judah, and they shall kill me, and go again to Rehoboam king of Judah. 28 Whereupon the king took counsel, and made two calves of gold, and said unto them, It is too much for you to go up to Jerusalem: behold thy gods, O Israel, which brought thee up out of the land of Egypt. 29 And he set the one in Bethel, and the other put he in Dan. 30 And this thing became a sin: for the people went to worship before the one, even unto Dan. 31 And he made an house of high places, and made priests of the lowest of the people, which were not of the sons of Levi. 32 And Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like unto the feast that is in Judah, and he offered upon the altar. So did he in Bethel, sacrificing unto the calves that he had made: and he placed in Bethel the priests of the high places which he had made. 33 So he offered upon the altar which he had made in Bethel the fifteenth day of the eighth month, even in the month which he had devised of his own heart; and ordained a feast unto the children of Israel: and he offered upon the altar, and burnt incense.

2Chron 11:13 And the priests and the Levites that were in all Israel resorted to him out of all their coasts. 14 For the Levites left their suburbs and their possession, and came to Judah and Jerusalem: for Jeroboam and his sons had cast them off from executing the priest’s office unto the LORD: 15 And he ordained him priests for the high places, and for the devils, and for the calves which he had made. 16 And after them out of all the tribes of Israel such as set their hearts to seek the LORD God of Israel came to Jerusalem, to sacrifice unto the LORD God of their fathers