what is the poem in the beginning of chapter 11 about?

what was mr.morrison waiting for outside the house?

Hey you need to ask your questions separately. Her is the first one,

Here is the poem:

Roll of thunder

Hear my cry

Over the water

Bye and bye

Ole man comin'

Down the line

Whip in hand to

Beat me down

But I ain't

Gonna let him

Turn me 'round.

This is a statement of strength and pride. The "old man" is a slave master and has his whip in hand to beat and make the slave submissive. The speaker voices they may be beat but will never be "tamed."