Good old Abe...The Great Emancipator...except the Emancipation Proclamation freed ZERO slaves! From a .gov website: "the Emancipation Proclamation was limited in many ways. It applied only to states that had seceded from the Union, leaving slavery untouched in the loyal border states. It also expressly exempted parts of the Confederacy that had already come under Northern control. Most important, the freedom it promised depended upon Union military victory."
That's why Lincoln put so much effort into permanently destroying slavery through constitutional amendment.