John Gill Commentary 1 Kings 14:1

"At that time Abijah the son of Jeroboam fell sick." — 1 Kings 14:1 (ASV)

At that time Abijah, the son of Jeroboam, fell sick .
] Being smitten of God with some disease, as a punishment of Jeroboam's sin; how long this was after the above things were done cannot be said.