Beshalach 5774

Later on in the torah portion of Bamidbar, Moshe blesses Yehoshua to save him from the spies. Rashi there says the blessing was "Hashem (Yud-key) will save you". The Tzeidah Laderech asks why did Moshe use that specific name of Hashem as opposed to others. He answers based on the story at the end of Beshalach where Yehoshua defeats Amalek. Hashem swears at the end of the story to fight a continuous war against Amalek using the name (yud-key). Moshe made sure to protect Yehoshua with the swear made by Hashem, especially since the spies had mentioned Amalek in their report back to Bnei Yisroel.