And reigned over Israel two years Not complete, as appears from 1 Kings 15:28-33. And walked in his sin In the worship of the calves which his father had made. If the death of his brother Abijah had had a due influence upon him, to make him religious, and the honour done to that well-disposed young man at his death had engaged him to follow his good example, his reign might have been long and glorious; but he walked in the way of his father, kept up the worship of the calves, and forbade his subjects to go up to Jerusalem to worship; sinned and made Israel to sin; and therefore God brought ruin upon him quickly, in the second year of his reign.
Related Commentaries of 1 Kings 15:25
1 Kings 15:25-26
25 And Nadab the son of Jeroboam began to reign over Israel in the second year of Asa king of Judah, and reigned over Israel two years.
26 And he did evil in the sight of the LORD, and walked in the way of his father, and in his sin wherewith he made Israel to sin.