דברים, פרק ג׳, פסוק כ׳

The soldiers of the tribes settling east of the Jordan River face a profound duty before they can enjoy the comfort of their newly acquired territory. They are required to serve as the vanguard for the nation, leaving their homes to help conquer the land on the western side of the river. Their mission is to fight alongside the rest of the Israelites until God grants their brothers the same peace and security that they have already experienced [ביאור שטיינזלץ].

In addressing these eastern tribes, God is specifically referred to as "your God." This phrasing delivers a vital message of faith. It reminds the soldiers that just as God kept His promise by granting them their land—thereby proving that He is truly their God—He will certainly fulfill His promise to the rest of the nation [ביאור יש״ר].

Only after the battles are over and the western land is secured will these soldiers be permitted to return. Each man will go back to his family, arriving at a piece of land that has already been fully divided and prepared for him during his absence [ביאור שטיינזלץ]. Beyond the immediate historical reality of soldiers returning home, this promise of returning to one's inheritance carries a deeper, spiritual resonance. It serves as a subtle hint to the distant future, pointing toward the era following the resurrection of the dead, when every individual will ultimately return to their own body [שפתי כהן].