Shared ground
These two verses do two things at once: they identify Manasseh historically (his age, the length of his reign, his base in Jerusalem, and his mother’s name), and they tell the reader how to evaluate him morally. The long reign (fifty-five years) is not offered as proof of success. The narrator gives the verdict immediately: Manasseh “did what was evil in Yahweh’s sight” (Yahweh).
The text also sets the standard for what “evil” means here. It is described as behavior aligned with “the abominations of the nations” whom Yahweh had previously “cast out” before Israel. The point is comparative: Manasseh is being measured against what Israel was not supposed to become.
Where interpretation differs
The main question is how strong the comparison is in v. 2. Some read it as saying Manasseh basically copied those nations’ practices in a direct, concrete way (imitation). Others read it as a broader claim: his rule generally moved Judah back toward the same kind of religious and moral patterns associated with those nations, without saying every practice was identical (general alignment).
A smaller question is how specific “the nations” is. Some take it as a shorthand for the local peoples remembered from Israel’s entry into the land. Others hear it more generally as “non-Israelite peoples,” with the stress on contrast rather than on listing particular groups.
Why the disagreement exists
Verse 2 uses broad comparison language (“after/according to the abominations”), and it does not specify which practices in these two verses. That leaves readers to decide whether the phrase signals close imitation or a more general resemblance. Likewise, “the nations” is a general term (see nations) and can be heard either as a specific remembered set or a generalized contrast.
What this passage clearly contributes
Explicitly, the passage establishes Manasseh’s reign as long and centered in Jerusalem, and it anchors him in the royal court by naming his mother, Hephzibah. It also explicitly frames his reign as morally wrong “in Yahweh’s sight” and ties that wrongness to Israel’s land-story: Judah’s king is portrayed as acting like the peoples Yahweh had removed before Israel. Theologically (as inference from the narrator’s framing), the passage shows that the book of Kings evaluates kings primarily by covenantal loyalty rather than political longevity or stability.