Also: A house divided cannot stand.
Eccles. 4:9-10 9 Two are better than one; because they have a good reward for their labour. 10 For if they fall, the one will lift up his fellow: but woe to him that is alone when he falleth; for he hath not another to help him up.
Mark 3:25
And if a house be divided against itself, that house cannot stand.