a house divided
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a house divided against itself cannot stand
If a group's members are in perpetual disagreement, the group will eventually cease to exist. The phrase is derived from a verse in the Bible (Mark 3:25) and was popularized in an 1858 speech by Abraham Lincoln. The candidate urged the members of his political party to unite because he understood that a house divided against itself cannot stand.
a house divideda group or organization weakened by internal dissensions.
This phrase alludes to Matthew 12:25: ‘Every city or house divided against itself shall not stand’, that is, will be unable to withstand external pressures.