Final answer:
Significant changes happened in Jerusalem during the reign of Hezekiah, including a cleansing campaign against unauthorized worship, removal of local shrines, and a shift towards centralized worship of Yahweh.
Step-by-step explanation:
During the reign of Hezekiah, significant changes happened to Jerusalem. He conducted a cleansing campaign against unauthorized worship and removed local shrines, destroyed sacred monuments, and smashed cult objects. These reforms aimed to promote the centralized worship of Yahweh and obedience to the laws of Moses.
Hezekiah's reign marked a period of religious reform in Judah, which sought to restore the covenant with Yahweh and eliminate pagan worship practices. However, after Hezekiah's reign, his son Manasseh reintroduced some of these cultic practices and shrines.
Overall, the religious reformers who promoted centralized worship and obedience to Yahweh gained prominence during Hezekiah's reign, marking a significant shift in Jerusalem's religious practices.