Yahweh speaks of explaining something as if it were unfolding it. The word "ears" represents the people who are listening. This can be stated in active form. Alternate translation: "I did not explain these things to you beforehand" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-synecdoche]] and [[rc://en/ta/man/translate/figs-activepassive]])