The closing words of Genesis 49:10 look beyond Judah's immediate descendants to a ruler whose authority has a wider reach: the peoples or nations are pictured as rendering obedience to him. The promise therefore gives the royal hope associated with Judah a universal dimension. The coming ruler is not portrayed merely as a local tribal leader.
In John 10:16 Jesus speaks of "other sheep" outside the immediate Jewish fold who will hear His voice, resulting in one flock under one shepherd. Christians understand this worldwide gathering as consistent with the broader expectation expressed in Jacob's blessing. The connection is thematic rather than a direct quotation of Genesis 49:10, but it fits a major biblical pattern: the blessing promised through Abraham's family ultimately extends to the nations, and the ruler from Judah exercises an authority that reaches beyond Israel. In the New Testament, Jesus fulfills this hope by gathering people from many nations under His shepherding rule.