1 Kings 11:27-29

27And this was the cause that he lifted up his hand against the king: Solomon was building Millo, and closing the breach of the city of David his father;

28and the man Jeroboam was strong and valiant; and Solomon saw the young man that he was industrious, and he made him ruler over all the charge of the house of Joseph.

29And it came to pass at that time that Jeroboam went out of Jerusalem, and the prophet Ahijah the Shilonite found him in the way; and he had clad himself with a new garment; and they two were alone in the field.