Jeremiah 17:3

Jerusalem, or Mount Zion, stood like a mountain surrounded by countryside. Normally a city on such a site would be secure from invaders. But Yahweh would turn over His people’s wealth and treasures, and their pagan places of worship (really sin), to their enemy (cf. Jeremiah 15:13). The idolaters thought the places where their shrines stood belonged to the gods they worshipped there, but Yahweh really owned them, and would turn them over to Judah’s invader.