Sermon text: Exodus 17:8-13
This passage recounts a pivotal early battle in Israel’s wilderness journey—only weeks after crossing the Red Sea, the nation faces an attack from the Amalekites at Rephidim, in the southern desert not far from Mount Sinai. The Amalekites, descendants of Esau, were a nomadic desert people who would remain hostile toward Israel for generations, later connected even to Haman in the book of Esther through the title “the Agagite.” Deuteronomy 25 later reveals a particularly despicable detail about their tactics: they attacked from the rear, targeting the weak, elderly, and stragglers trailing behind Israel’s massive procession—a million or so people who had been enslaved brick-makers mere months earlier, now suddenly required to fight as soldiers with virtually no weapons or military experience, against a mobile, camel-riding enemy on their home terrain.
Moses instructs Joshua—mentioned here for the first time in Scripture—to assemble men and fight, while Moses himself climbs a nearby hill with the staff of God, accompanied by Aaron and Hur. As long as Moses held the staff aloft, Israel prevailed; when his arms dropped from exhaustion, the Amalekites gained ground. Eventually Aaron and Hur seat Moses on a stone and physically support his arms until sunset, securing Israel’s victory.
Though this is a physical battle, it functions as a vivid picture of spiritual warfare, and three truths stand out.
First, victory doesn’t come easily, even when someone is squarely within God’s will. The battle swings back and forth throughout the day rather than resolving quickly—a pattern spiritual battles often follow as well. Galatians 6:7-9 speaks directly to this tension: sowing to the Spirit yields a harvest in due season, but only for those who don’t grow weary and give up in the meantime. Perseverance, not immediate resolution, is the expectation.
Second, victory is won at the spiritual level before it shows up on the physical battlefield. Israel, outmatched and underprepared, wasn’t winning through military skill or superior weapons—the outcome depended entirely on God’s sovereignty, symbolized by the raised staff on the hill. The soldiers fighting below likely glanced up repeatedly to check whether that staff remained lifted, drawing courage and confidence not from their own strength but from visible evidence that God was actively engaged in the fight through Moses’s obedience.
Third, victory sometimes requires adjustment. When Moses’s arms grew too heavy to sustain on their own, Aaron and Hur didn’t simply keep doing what wasn’t working—they changed their approach, seating him so they could support his arms more sustainably. This wasn’t a failure of faith; it was discernment recognizing that the same method wasn’t going to produce a different result. The same principle applies to churches and individual believers alike: being in God’s will doesn’t mean rigidly repeating the same methods indefinitely. Sometimes faithfulness requires recognizing when the current approach needs to change.
This principle extends into a broader ministry vision worth sharing. A network based in Richmond, Virginia, called Interlink Fellowship, grew out of a season when a church experienced real instability and discovered that few resources exist to help struggling congregations recover rather than simply close their doors or get absorbed by another group. Out of that need came a specific initiative named E17, drawing directly from this passage—the goal being to serve as “Aaron and Hur” for churches that are struggling, holding up their arms through practical help: accounting support, praise team development, youth or children’s ministry assistance, evangelism training, whatever a particular congregation needs, offered without cost and without requiring agreement on secondary matters like denominational polity or leadership structure. The one non-negotiable is a shared commitment to the true gospel; beyond that, the goal is simply helping congregations become healthier and more effective, especially since so many struggling churches lack the resources to pay for outside consulting help even when they recognize they need it.
Being part of this fellowship connects it, by extension, into that same E17 network—not as an obligation, but as an open door for anyone interested in that kind of ministry, since the underlying conviction driving all of it is the same: every church preaching the true gospel deserves the chance to become healthy and thriving, not simply to fade away for lack of support.