The writer speaks of God as if he wore his strength like a belt. AT: "showing that you are very powerful" (See: [[rc://en/ta/man/translate/figs-metaphor]])
These two phrases have the same meaning and are used together to create a vivid impression on the hearer or reader. AT: "the continuous roaring of the seas" (See: [[rc://en/ta/man/translate/figs-parallelism]])