en_tn_lite_do_not_use/heb/11/38.md

The world was not worthy

Here "world" refers to the people. Alternate translation: "The people of this world were not worthy" (See: rc://en/ta/man/translate/figs-metonymy)

They were always wandering about

This was because they had no place to live.

in caves and holes in the ground

"some lived in caves or in holes in the ground"