וְלֹא יָכֹל יוֹסֵף לְהִתְאַפֵּק — Yosef could not forbear (Gen. 45:1) — but had he done so, had he completed the brothers' reconciliation that he had started, then the kingdom would never have split after Sh'lomo's death. It is for this reason that, just after, he cried over the destruction of the bes hamikdash, which would have been due to animosity among Jews, animosity that would not have been had Yosef forborne.
I heard the above from someone who said he'd seen it quoted in the name of the S'fas Emes but that he couldn't find it in the S'fas Emes's writings. Can anyone source it, please?
