The answer is: Joshua

Ex 17:8

In Exodus 17:8, we witness a pivotal moment in Israel's early history when the Amalekites launch an attack against the Israelites. In response to this crisis, Moses turns to Joshua, signaling the latter's role as a capable leader. It's worth noting that this is our first introduction to Joshua, who would later emerge as a major figure in taking the Israelites into the Promised Land.

What’s fascinating here is the strategy Moses employs. Instead of jumping into battle as the leader, he delegates the responsibility to Joshua. This act underscores the importance of leadership and collaboration in overcoming challenges—a lesson still relevant today. Also, the name "Joshua" means "Yahweh is salvation," which is particularly fitting as he stands against a hostile enemy.

Joshua’s military prowess will serve him well later on, especially when he leads the Israelites to several heroic victories in Canaan. This early task of choosing men shows the weight of responsibility he carries, as he learns not just to fight, but to lead others in battle, embodying themes of trust and perseverance essential for any leader.

Moreover, keep an eye on these themes in the whole Exodus narrative. Timing here is also crucial; the battle represents the Israelites' struggle against their oppressors, something they would wrestle with numerously before they finally reached freedom. Every skirmish laid foundational spiritual and ethical guides for future generations—like the emphasis on faith in unity and collective strength over isolation.