In verses 3:6-7, Yahweh rebukes the people of Jerusalem because they did not learn from how he judged other sinful cities. It may be helpful to add "Yahweh says this:" to the beginning of verse 6 to make this explicit. (See: [[rc://en/ta/man/jit/figs-explicit]])
These two sentences express the same idea in two different ways in order to emphasize the complete destruction of the cities. (See: [[rc://en/ta/man/jit/figs-parallelism]])