Yahweh is mourning for the land of Israel as if it were a person who died. (See: [[rc://en/ta/man/translate/figs-parallelism]] and [[rc://en/ta/man/translate/figs-personification]])
Yahweh uses this rhetorical question to emphasize that only a very wise person will understand the things he has said. This question can be written as a statement. AT: "Only people who are very wise can understand these things." (See: [[rc://en/ta/man/translate/figs-rquestion]])
Yahweh uses this rhetorical question to emphasize that only the people he has spoken to can declare these things. This question can be written as a statement. AT: "Only those who have been taught by Yahweh can explain these things to others." (See: [[rc://en/ta/man/translate/figs-rquestion]])
Yahweh uses this rhetorical question to emphasize that only a wise person could explain why the land has been destroyed. This question can be written as a statement. AT: "Only a wise person could explain why the land has perished and been destroyed ... pass through." (See: [[rc://en/ta/man/translate/figs-rquestion]])
This can be stated in active form. Both "perished" and "been ruined" describe the land being ruined. AT: "is the land ruined" (See: [[rc://en/ta/man/translate/figs-activepassive]] and [[rc://en/ta/man/translate/figs-doublet]])