Chronicles II 33:16

16 And he repaired the altar of the Lord, and offered upon it a sacrifice of peace-offering and thank-offering, and he told Juda to serve the Lord God of Israel.

Chronicles II 33:16 Meaning and Commentary

2 Chronicles 33:16

And he repaired the altar of the Lord
Which was fallen to ruin, being neglected and disused in his times of idolatry: or, according to the Keri, or marginal reading, and so the Targum, "he built it"; which perhaps he had before pulled down and destroyed:

and sacrificed thereon peace offerings and thank offerings;
to the Lord, for bringing him out of captivity, and restoring him to his kingdom; and especially for converting him from his idolatries, giving him repentance for them, and forgiveness of sins:

and commanded Judah to serve the Lord God of Israel;
and him only; another instance of the truth of his repentance, in endeavouring to reform those whom he had misled, and restore the true worship of God among them, and bring them back to that.

Chronicles II 33:16 In-Context

14 And afterward he built a wall without the city of David, from the southwest southward in the valleys and at the entrance through the fish-gate, as men go out by the gate round about, even as far as Opel: and he raised it much, and set captains of the host in all the fortified cities in Juda.
15 And he removed the strange gods, and the graven out of the house of the Lord, and all the altars which he had built in the mount of the house of the Lord, and in Jerusalem, and without the city.
16 And he repaired the altar of the Lord, and offered upon it a sacrifice of peace-offering and thank-offering, and he told Juda to serve the Lord God of Israel.
17 Nevertheless the people still sacrificed on the high places, only to the Lord their God.
18 And the rest of the acts of Manasses, and his prayer to God, and the words of the seers that spoke to him in the name of the God of Israel,

The Brenton translation of the Septuagint is in the public domain.