Some translations set poetry farther to the right than the rest of the text to show that it is poetry. The ULB does this with the poetry in this chapter.
This chapter focuses on Yahweh's faithfulness to fulfill his covenants. It references several different covenant promises in this chapter. (See: [[rc://en/tw/dict/bible/kt/covenantfaith]], [[rc://en/tw/dict/bible/kt/faithful]], [[rc://en/tw/dict/bible/kt/fulfill]] and [[rc://en/tw/dict/bible/kt/covenant]] and [[rc://en/tw/dict/bible/kt/promise]])