Why did Moshe change Hoshea's name to Yehoshua in Parshat Shlach? Why didn't he pray for the other spies? Rabbi Dunner shares an answer from the Maharal, but prefers an answer from the Milchamot Yehuda - with an additional piece from the Ponevezh Yeshiva, Rav Eleazar Shach z"l. The challenges we experience in life offer us extra protection when we need it.