What does Lincoln mean when he says we're whaler's In his movie Lincoln?

In the movie "Lincoln," the phrase "we're whalers" is used metaphorically to describe the relentless pursuit of a goal, much like whalers are driven to hunt for whales despite the dangers and challenges involved. It reflects the tenacity and determination of Lincoln and his allies in their effort to pass the Thirteenth Amendment, which aims to abolish slavery. This comparison underscores the idea that achieving significant social change requires courage and perseverance in the face of opposition.