Vanity is a delusion

Jeremiah 51:17-19

Every man is brutish by his knowledge; every founder is confounded by the graven image: for his molten image is falsehood, and there is no breath in them. They are vanity, the work of errors: in the time of their visitation they shall perish. The portion of Jacob is not like them; for he is the former of all things: and Israel is the rod of his inheritance: the Lord of hosts is his name.