Charles Ellicott Commentary 2 Kings 15:18

"And he did that which was evil in the sight of Jehovah: he departed not all his days from the sins of Jeroboam the son of Nebat, wherewith he made Israel to sin." — 2 Kings 15:18 (ASV)

He did that which was evil. —Ewald says that at the outset Menahem appeared to be guided by better principles, referring to Zechariah 11:4-8.

All his days. —In the Hebrew these words occur at the end of the verse. They are not found in any other instance of the common formula which the verse repeats (compare 1 Kings 15:26; 1 Kings 15:34; 1 Kings 16:26; 1 Kings 22:53; 2 Kings 3:1; 2 Kings 10:31, etc.), and almost certainly belong to the next verse.

From the sins. —Heb., from upon the sins, which is peculiar. The reading of the Septuagint, from all the sins, appears right.