17:2 Again the people complained about their problem instead of praying. Some problems can be solved by careful thought or by rearranging our priorities. Some can be solved by discussion and good counsel. But some problems can be solved only by prayer. We should make a determined effort to pray when we feel like complaining because complaining only raises our level of stress. Prayer quiets our thoughts and emotions and prepares us to listen.
17:8 The Amalekites were descendants of Amalek, a grandson of Esau. They were a fierce nomadic tribe that lived in the desert region of the Dead Sea. They made part of their livelihood by conducting frequent raids on other settlements and carrying off plundered goods. They killed for pleasure. One of the greatest insults in Israelite culture was to call someone “a friend of Amalek.” When the Israelites entered the region, the warriors of Amalek saw this as a perfect opportunity for both pleasure and profit. But this hostile tribe was moving in on the wrong group—a people led by God. For the Israelite slaves to defeat such a warlike nation was more than enough proof that God was with them as he had promised to be.
17:9 Here we meet Joshua for the first time. Later he would become the great leader who would bring God’s people into the Promised Land. As a general of the Israelite army, he was gaining valuable experience for the greater battles to come.
17:10-13 Aaron and Hur stood by Moses’ side and held up his arms to ensure victory against Amalek. We need to “hold up the hands” of our spiritual leaders as well. Shouldering some responsibility, lending a word of encouragement, or offering a prayer are ways of refreshing spiritual leaders in their work.