your first sentence and second sentence is in direct contradiction to one another. lincoln was already having a problem maintaining order in cities such as new york. the draft was highly unpopular; this was partially abated by welcoming foreign born troops into the union ranks. it's not uncommon for president's to wrap national struggles, however spurious, in godly inspired rhetoric. in this case, it was was slavery. you are correct in one thing, abolition was not popular in the north.
United States