Jesus, the Son of God and of the family of Jesse, came to save the world
"And in that day there shall be a Root of Jesse [Messiah, named Yeshia (Jesus)], Who shall stand as a banner to the people; For the Gentiles shall seek Him, And His resting place shall be glorious."
It shall come to pass in that day [the End Days, yet to come] that the Lord shall set His hand again the second time to recover the remnant of His people [Israel] who are left... He will set up a banner for the nations, And will assemble the outcasts of Israel, And gather together the dispersed of Judah From the four corners of the earth.
And afterward they [Israel] asked for a king; so God gave them Saul the son of Kish, a man of the tribe of Benjamin, for forty years. And when He had removed him, He raised up for them David as king, to whom also He gave testimony and said, 'I have found David the Son of Jesse, a man after my own heart, who will do all my will.' From this man's seed, according to the promise, God raised up for Israel a Saviour—Jesus— after John had first preached, before His coming, the baptism of repentance to all the people of Israel. (Act 13:21-24)
The regathering of Israel, following the regeneration, is another high point of prophetic revelation to be found in many of the prophets. In Isaiah 11:11–12:6, the final regathering is described as the second of the world-wide regatherings of Israel. The first regathering is the one in unbelief prior to the Great Tribulation in preparation for judgment. The regathering described in this passage is the second one (v. 11a), in faith and in preparation for the millennial blessings. This regathering is not merely local from the nations of the Middle East (Isa 11:11b), but from all over the world (v. 12). Isaiah then goes on to develop certain characteristics of Israel’s final regathering. (Israelology: The Missing Link in Systematic Theology. Tustin, Calif.: Ariel Ministries, Arnold Fruchtenbaum)