The first act of the Israelites, on learning what had occurred at Shechem, was to bring together the great “congregation” of the people (compare Judges 20:1), in order that, regularly and in solemn form, the crown might be declared vacant, and a king elected in the room of the monarch whose authority had been thrown off. The congregation selected Jeroboam. The rank, the talent, and the known energy of the late exile, his natural hostility to the house of Solomon, his Ephraimitic descent, his acquaintance with the art of fortification, and the friendly relations subsisting between him and the great Egyptian king, pointed him out as the most suitable man for the vacant post. If, according to the Septuagint, Shishak had not only protected him against Solomon, but also given him an Egyptian princess, sister to his own queen, in marriage, his position must have been such that no other Israelite could have borne comparison with him. Again, the prophecy of Ahijah would have been remembered by the more religious part of the nation, and would have secured to Jeroboam their adhesion; so that every motive, whether of policy or of religion, would have united to recommend the son of Nebat to the suffrages of his countrymen.
Related Commentaries of 1 Kings 12:20
1 Kings 12:20
20 And it came to pass, when all Israel heard that Jeroboam was come again, that they sent and called him unto the congregation, and made him king over all Israel: there was none that followed the house of David, but the tribe of Judah only.