ישעיהו יא:י מדרש: Midrash Tanchuma וBereishit Rabbah

Another comment on And unto him shall be obedience of the peoples be (Gen. 49:10): He is the one for whom the peoples will assemble,²¹The word yikkhat (“obedience”) is taken as if it were related to Hebrew mitkahalim (“assemble”). as is said: The root of Jesse, that standeth for an ensign of the peoples, unto him shall the nations seek (Isa. 11:10).

..."Until he comes to Shiloh" - the one to whom the kingdom is his (shelo); "and to him will be a gathering of peoples" - the one to whom the nations of the world will stream, as it is stated (Isaiah 11:10), "the stock of Jesse that has remained standing shall become a standard to peoples—nations shall seek his counsel"...