Could someone please answer these questions, so I could use this as an example for the other quotes?

Question

"A house divided against itself cannot stand"

1) Source: Abraham Lincoln
2) In What context was it used:
3) Larger significance in illuminating a theme of American history:

Info that I found:

speech showed the danger of disunion because of slavery or between slave and free states

brought emancipation of slaves

Answer 1

From which of Lincoln's speeches does this come? Where was he when he gave the speech? To whom was he speaking?

Context

Answer 2

speech delivered at close of Republican state convention

Answer 3

the convention that named him candidate for US senate

Answer 4

I get it now. I looked at the other post.