יְחִ֥י רְאוּבֵ֖ן וְאַל־יָמֹ֑ת וִיהִ֥י מְתָ֖יו מִסְפָּֽר׃ (ס)
Let Reuben live, and not die In that his men become few.
Shenei Luchot HaBerit
ויהי בישרון מלך בהתאסף ראשי עם . Rashi comments that this means that such a situation prevails when all parts of Israel gather together in a single group in peace and harmony. While strife prevails G–d is not perceived as Israel's king.