John Wesley on 2 Kings 23:13

Corruption - The mount of olives, called the mount of corruption, for the gross idolatry there practiced. Which - Not the same individual altars; which doubtless either Solomon upon his repentance, or some other of Josiah's predecessors had taken away, but other altars built by Manasseh or Amon, which because erected by Solomon's example, and for the same use, and in the same place, are called by his name: this brand is left by the Holy Ghost upon his name and memory, as a just punishment of that abominable practice, and a mean to deter others from the like. Abomination - The idol, so called, because it was abominable, and made them abominable to God.