"If we could first know where we are and whither we are tending, we could better judge what to do and how to do it. We are now far into the fifth year since a policy was initiated with the avowed object and confident promise of putting an end to slavery agitation. Under the operation of that policy, that agitation has not only not ceased but has constantly augmented. In my opinion, it will not cease until a crisis shall have been reached and passed. "A house divided against itself cannot stand." I believe this government cannot endure, permanently, half slave and half free. I do not expect the Union to be dissolved; I do not expect the house to fall; but I do expect it will cease to be divided. It will become all one thing, or all the other. Either the opponents of slavery will arrest the further spread of it and place it where the public mind shall rest in the belief that it is in the course of ultimate extinction, or its advocates will push it forward till it shall become alike lawful in all the states, old as well as new, North as well as South.
Have we no tendency to the latter condition?"
Lincoln’s speech quotes from the Gospel. Lincoln gave this speech June 16, 1858 at the Republican State Convention in Springfield, Illinois. A speech that, under normal circumstances, would have been an acceptance speech for the Republican U.S. Senate seat nomination actually was a bold attack on the divisive issue of slavery.
Lincoln hoped to use a well-known figure of speech to help rouse the people to recognition of the magnitude of the ongoing debates over the legality of slavery. Our Gospel this week contains the phrase, "If a kingdom is divided against itself, that kingdom cannot stand. And if a house is divided against itself, that house will not be able to stand. And if Satan has risen up against himself and is divided, he cannot stand, but his end has come."
The "fifth year" refers to Kansas-Nebraska, the act that was focal point of the debate on the expansion of slavery in 1854. The violence in this area foreshadowed that of the Civil War.
The speech just came a year after the Dred Scott decision. In March of 1857, the United States Supreme Court, led by Chief Justice Roger B. Taney, declared that all blacks — slaves as well as free — were not and could never become citizens of the United States. The court also declared the 1820 Missouri Compromise unconstitutional, thus permiting slavery in all of the country’s territories.
The "house" refers to the Union — to the United States of America — and that house was divided between the opponents and advocates of slavery. Lincoln felt that the ideals of freedom for all and the institution of slavery could not coexist — morally, socially, or legally — under one nation. Slavery must ultimately be universally accepted or universally denied.
This speech, given two-and-a-half years before South Carolina would become the first state to secede from the Union, foreshadowed the coming storm of the Civil War. Although Lincoln lost the election to Stephen Douglas, his eloquent political arguments put him in the national limelight and paved the way for his election to the presidency in 1860.