2 Kings 15:28
And he did that which was evil in the sight of the LORD: he departed not from the sins of Jeroboam the son of Nebat, who made Israel to sin. And he did that which was evil in the sight of the LORD: he departed not from the sins of Jeroboam the son of Nebat, who made Israel to sin.
Pekah did what was evil in the sight of the Lord. His evil was that he did not depart from the sins of Jeroboam the son of Nebat, who made Israel to sin, but continued in them. During his reign Assyria invaded Israel and carried many people from Galilee and from east of the Jordan into captivity. After this blow the northern kingdom never recovered.