Some translations prefer to set apart extended quotations, prayers or songs. The ULB and many other English translations indent the lines of 9:6-7, which is the poetic part of the quotation. They also set apart 9:25-27 which contain two quotations.
Some translations indent each line of poetry to make it easier to read. The ULB does this with the poetry in 9:6 and 9:25-27.
There is a noticeable shift in man’s relationship with the animals on the earth. Before the flood, there apparently was harmony between man and the animals. After the flood, the animals fear man and man is permitted to eat the animals, something he was not allowed to do previously. (See: rc://en/ta/man/translate/figs-explicit)
This chapter introduces the concept that there is life in the blood of an animal and in man. In Hebrew thought, blood represents the life present in a living thing. This is an image used throughout Scripture. (See: rc://en/tw/dict/bible/kt/life and rc://en/tw/dict/bible/kt/blood)
God made a covenant with Noah. This covenant was an unconditional promise God made to never destroy the whole world with a flood. Rainbows are a perpetual sign of this covenant. (See: rc://en/tw/dict/bible/kt/covenant and rc://en/tw/dict/bible/kt/promise)
In Noah’s culture, it was unacceptable to see a father’s nakedness. It was wrong for Ham to show his brothers their father’s nakedness. Ham’s actions were insulting or disrespectful. (See: rc://en/ta/man/translate/figs-explicit)
This is a command that God gives. He expects Noah to obey him.