how did abraham lincoln's feelings change from 1858 to 1862 about slavery?

He was personally opposed to slavery, but did not considered it a reason for the War. He said in 1862

"My paramount object in this struggle is to save the Union, and is not either to save or to destroy slavery. If I could save the Union without freeing any slave I would do it, and if I could save it by freeing all the slaves I would do it; and if I could save it by freeing some and leaving others alone I would also do that. What I do about slavery, and the colored race, I do because I believe it helps to save the Union; and what I forbear, I forbear because I do not believe it would help to save the Union. .

I have here stated my purpose according to my view of official duty; and I intend no modification of my oft-expressed personal wish that all men everywhere could be free."

Lincoln apposed slavery but he was not an abolitionist. Instead he wanted to limit it to where it was at and not let it into any new states and let it die a natural death. I think he realize to do immediately away with slavery would have been disasterous to the economy of the south

there have been no substitute of view for Lincoln. He became against slavery (comparable as prevalent Lee of Confederates), yet he did no longer evaluate it pressing remember worth to rock the boat of the Union. yet in 1863 ecu powers have been waiting to nicely known Confederacy as a separate state. With Emancipation Proclamation freeing slaves solely interior the Southern states Lincoln became propaganda conflict against the South portray them as no longer something yet slave proprietors and portray North, which maintained slavery as loose states. England and France could desire to no longer in all risk comprehend Confederacy after that proclamation.