Matthew Poole and continuators on 1 Kings 12:3

3 That they sent and called him : and Jeroboam, and all the congregation of Israel came and spake unto Rehoboam, saying,

When the People sent him word of Solomon's Death, they also sent a summons for him to come to Shechem. Or, As soon as he had heard the tidings of Solomon's Death from others, or from common Fame; presently there came a solemn Message to him from the people, who desired his presence and assistance, as it seems probable from divers Motives; some, that they might translate the Kingdom from Rehoboam to him; and others onely for this reason, That the Presence and Countenance of a man of so great Interest and Reputation, and one that had some Claim or Pretence upon the Kingdom, might lay the greater obligation upon Rehoboam to grant their desires of ease and relief.