ישעיהו, פרק י״א, פסוק י״ג

In the End of Days, a profound historical reconciliation will take place within the nation, bringing a close to the ancient and bitter rift between the kingdoms of Judah and Israel. All political and tribal rivalries will disappear, making way for complete unity. In this context, the name Ephraim serves as a symbol for all the tribes of Israel outside of Judah [רד״ק]. The core of this historical conflict lies in a struggle for leadership. For generations, Ephraim harbored deep jealousy over the royal authority granted to the House of David, a resentment that reached its breaking point when the kingdom split during the days of Jeroboam and Rehoboam [רד״ק, מצודת דוד, מלבי״ם]. The roots of this tension may reach even further back, originating from jealousy over the arrangement of the tribal flags in the desert [אברבנאל]. Additionally, Ephraim maintained a historical claim that the right to rule truly belonged to Joseph, stemming from the firstborn privileges taken from Reuben [אהבת יהונתן].

This dynamic created a cycle of resentment and retaliation. Jealousy occurs when a person feels that a rightful privilege is being taken by someone else, which perfectly captures Ephraim's belief that Judah had stolen the crown. In response to this jealousy, Judah reacted with active hostility and harassment stemming from hatred or a desire for revenge over past deeds, punishing Ephraim for rebelling against the Davidic dynasty [רד״ק, אבן עזרא, מצודת ציון, מלבי ם ביאור המילות]. Ultimately, this jealousy will completely vanish. When the tribes return from exile, they will gladly and willingly accept the leadership of a king from Judah, leaving their ancient rivalry behind [שד״ל]. This fading of jealousy is tied to the future reality where the Messianic king will rule over all the nations of the world. Because this global dominion is an entirely new inheritance that did not belong to their ancestors, Ephraim's legal claim as the firstborn loses its validity, as a firstborn does not receive a double portion of future, unpossessed assets. With the legal claim gone, the source of the jealousy naturally disappears [אהבת יהונתן].

Regarding the fate of those who harbor hostility toward Judah, there are different perspectives. The primary approach among commentators is that this refers to the people of Ephraim themselves. Rather than implying a physical destruction or death penalty, it is a promise that the very concept of being an enemy of Judah will cease to exist. The hatred will be entirely uprooted, and the tribes will return to being loving brothers [מצודת דוד, שד״ל, אברבנאל]. Conversely, other scholars suggest that this refers to actual enemies, whether foreign nations like Aram or other adversaries from both inside and outside, who will be destroyed so they can no longer disrupt the peace of the nation [מלבי״ם, אבן עזרא, ביאור שטיינזלץ]. On a deeper level, this future era promises absolute harmony between the two future redeemers: the Messiah son of Joseph, descending from Ephraim, and the Messiah son of David, descending from Judah. During the redemption, these two leaders will work side by side in total peace, completely free of any jealousy, competition, or ill will toward one another [רש״י, מצודת דוד, מלבי״ם].