Divrey Hayamim Bais 15:8

8 And when Asa heard these words, and the nevu’ah of Oded HaNavi, he took courage, and put away the shikkutzim (abominable idols) from kol Eretz Yehudah and Binyamin, and from the cities which he had captured from Mt Ephrayim, and renewed the Mizbe’ach Hashem, that was in front of the Ulam Hashem.

Divrey Hayamim Bais 15:8 Meaning and Commentary

2 Chronicles 15:8

And when Asa heard these words, and the prophecy of Oded the
prophet
Some think that besides the above words of Azariah the son of Oded, a prophecy of Oded his father was related by him, though not recorded; but rather Oded here is the same with the son of Oded; and so the Vulgate Latin and Syriac versions read Azariah the son of Oded; and so does the Alexandrian copy of the Septuagint version:

he took courage, and put away the abominable idols out of all the land
of Judah and Benjamin;
which were abominable to God, and all good men; besides the images and statues he had broken before, he removed other idols that remained, being animated and emboldened by the speech of the prophet:

and out of the cities which he had taken from Mount Ephraim:
the same which his father Abijah had taken from Jeroboam, ( 2 Chronicles 13:19 ) and which perhaps, upon the approach of the Ethiopians, revolted from Asa, or were restored by them to Jeroboam, and Which Asa retook upon his conquest of them:

and renewed the altar of the Lord before the porch of the Lord;
the altar of burnt offering, which had never been repaired since it was made by Solomon; perhaps he anew overlaid it with brass that being worn out, or become very thin in some places.

Divrey Hayamim Bais 15:8 In-Context

6 And nation was destroyed of nation, and city of city, for Elohim did trouble them with every tzuris.

7 Be ye strong therefore, and let not your hands be weak, for there is sachar (reward) for your pe’ulah (work).

8 And when Asa heard these words, and the nevu’ah of Oded HaNavi, he took courage, and put away the shikkutzim (abominable idols) from kol Eretz Yehudah and Binyamin, and from the cities which he had captured from Mt Ephrayim, and renewed the Mizbe’ach Hashem, that was in front of the Ulam Hashem.

9 And he gathered all Yehudah and Binyamin, and the gerim with them from Ephrayim and Menasheh, and from Shim’on, for they fell to him from Yisroel in abundance, when they saw that Hashem Elohav was with him.

10 So they gathered themselves together at Yerushalayim in the chodesh hashelishi, in the fifteenth year of the reign of Asa.