This speaks of the man being safe as if he lived in a home on a high hill. These two phrase are parallel and the second phrase describes the place where the man lives. Alternate translation: "he will be safe, like a man who home is built on a high hill, in a rocky place that is easy to defend" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-parallelism]])
This refers to a high hill or mountainside. Alternate translation: "the high hill" or "the mountainside" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This speaks of rocky areas that are easy to defend as if they were actually fortresses. Alternate translation: "the large piles of rocks" (See: [[rc://en/ta/man/translate/figs-metaphor]])