The answer is: Mount of Olives

2 Kings 23:13

The "mount of corruption" mentioned in 2 Kings 23:13 alludes to a significant historical context. This refers to the Mount of Olives, a location steeped in biblical history. Though many might connect this mount with peace and fulfillment, due to its panoramic view of Jerusalem and subsequent significance in the life of Jesus, its biblical title suggests a darker time.

The Old Testament passage narrates how King Josiah, a reformer at heart, was working toward purging Jerusalem of idolatrous practices. This mount had once been a site where worship of pagan deities flourished, inviting abominations that flouted the worship of Yahweh. It gets this ominous nickname from the religious corruption that seeped in over time.

Interestingly, there's a powerful echo found in Joel 3:12, where the valley of Jehoshaphat is pointed out between the Mount of Olives and Jerusalem—a reminder of the struggle between fidelity to divine commandments and the temptation of surrounding cultures.

Trivia to note, the Mount of Olives stands about 2,700 feet high, making it a natural lookout point, and it holds immense spiritual significance not only in Judaism but also in Christianity, hinting at the ways sacred spaces can transformed over history. So, from a site of corruption to a gateway of pivotal events in spiritual narratives, the mount illustrates both the gravity of human fallibility and the potential for redemption.