Sir Ernest Shackleton had escaped the dangers of the open water and ice flows to land on Elephant Island. However, Elephant Island was not on the typical routes of the whaling ships. They did not know if they would be discovered there. They did not know if rescue would come.

“It was perhaps no coincidence that Shackleton chose the following day, April 20, to gather his company to make a momentous announcement: A party of men under his command would shortly set out in the James Caird and make for the whaling stations of South Georgia. The stupendous difficulties of this journey required no elaboration to the men who had just arrived on Elephant Island. The island of South Georgia was 800 miles away—more than ten times the distance they had just traveled.”

“To reach it, a twenty-two-and-a-half-foot long open boat would have to cross the most formidable ocean on the planet, in the winter. They could expect winds up to 80 miles an hour, and heaving waves—the notorious Cape Horn Rollers—measuring from trough to crest as much as sixty feet in height; if unlucky, they would encounter worse. They would be navigating towards a small island, with no points of land in between, using a sextant and chronometer—under brooding skies that might not permit a single navigational sighting. The task was not merely formidable; it was, as every sailing man of the company knew, impossible.”
– Caroline Alexander, The Endurance.

They were physically safe where they were. They had food. It wasn’t particularly good or nourishing, but they wouldn’t starve. They needed to risk their lives if they were to be truly rescued.

How does God call us to risk our lives in order to be truly saved?