en_tn_lite_do_not_use/oba/01/06.md

How Esau has been ransacked, his hidden treasures will be searched out

This can be stated in active form. Alternate translation: "Ah, enemies have stolen everything from Esau; they have found his hidden treasure" (See: rc://en/ta/man/translate/figs-activepassive)

Esau

The people of Edom were the descendants of Esau. Therefore, in this book "Edom" and "Esau" refer to the same group of people.

has been ransacked

This means the enemies have search through Esau's things, taken everything valuable, and left everything else in a mess or damaged.