Some translations set each line of poetry farher to the right than the rest of the text to make it easier to read. The ULB does this with the poetry in this chapter.
This chapter prophesies destruction against several cities in Phoenicia as well as in Tarshish. The exact location of Tarshish is unknown. Because of the locations mentioned in this chapter, it appears that the Assyrians will conquer many of the nations on the Mediterranean Sea. (See: [[rc://en/tw/dict/bible/kt/prophet]])