Force to next page

How do I force a line of music to the next page? I have the refrain on page one and it's being crowded by the first line of verses at the bottom. But on the next page, I have half a blank page at the end. I'd like to force the verses to the second page and give more room for the refrain on the first page. I can't figure out how to force more space between only one section and not the whole thing.