7323. 'Over their rivers, over their streams' means against teachings that consist of falsity. This is clear from the meaning of 'rivers' and 'streams' as teachings. For 'water' means falsities, see above in 7307, and therefore 'rivers' and 'streams', which are gatherings of them, are teachings, here teachings consisting of falsity. 'Rivers' are attributes of intelligence, and so are matters of truth, see 2702, 3051 and therefore in the contrary sense they are the opposite of intelligence, and so are matters of falsity.