Some translations set each line of poetry farther to the right than the rest of the text to make it easier to read. The ULB does this with the poetry in 16:11-12.
Abram married Hagar while he was also married to Sarai. Even though Abram had his wife's permission, this was an immoral and sinful action. It also showed a lack of faith in God. Sarai quickly became jealous of Hagar. (See: [[rc://en/tw/dict/bible/kt/sin]], [[rc://en/tw/dict/bible/kt/faith]] and [[rc://en/tw/dict/bible/kt/jealous]] and [[rc://en/ta/man/translate/figs-explicit]])