In order to persuade the border states to remain in the union Lincoln?

In order to persuade the border states to remain in the Union, President Lincoln emphasized the importance of preserving the nation and maintaining the Union as a whole. He promised not to interfere with slavery in those states, appealing to their economic interests and social structures. Lincoln also sought to reassure them that the war was not about abolishing slavery but rather about unity and stability, hoping to keep them loyal to the Union cause.