en_tn/jer/48/28.md

cliffs

A cliff is a steep side of a mountain.

Become like a dove ... in the rocks

This simile emphasizes the people should leave their cities and live in the rocky cliffs to hide from their enemies. (See: rc://en/ta/man/translate/figs-simile)

the mouth of a hole in the rocks

Here "mouth of a hole" is an idiom that means the entrance to a cave. AT: "the entrance to caves" or "an opening in the rocks" (See: rc://en/ta/man/translate/figs-idiom)

We have heard

Here "We" refers generally to all the people in the surrounding area.

arrogance ... haughtiness ... pride ... self-glory ... conceit in his heart

All of these words have similar meanings. They are used together to emphasize the extreme pride of the people of Moab.

the conceit in his heart

Here "heart" represents a person's inner being. AT: "his conceit" (See: rc://en/ta/man/translate/figs-metonymy)