The name Jew is really a shortened form of Judah. This name came to be used for the Israelites after their return from the Babylonian Captivity. Although there were representatives of all the tribes in the land at that time, the dominant tribe was Judah, and the land was called Judea. In the New Testament the words Hebrew, Israelite and Jew are synonymous terms to describe the people of Israel. The Apostle Paul applies all three terms to himself at various times.
Genesis 49:10 The scepter shall not depart from Judah, nor the ruler's staff from between his feet, until tribute comes to him; and to him shall be the obedience of the peoples
This prophecy says that The Messiah would be the coming one to whom the scepter belongs. This is part of Jacob’s prophetic blessings on his sons; The promise of the “scepter” and “ruler’s staff” indicates that Judah would exercise rulership. This was fulfilled in King David and his descendants, ultimately being fulfilled in the rule of the Messiah. In the New Testament
Hebrews 7:14 For it is evident that our Lord was descended from Judah, and in connection with that tribe Moses said nothing about priests
Hebrews 7:14 explicitly traces Yeshua’s descent from Judah, while Revelation 5:5 calls Yeshua “the Lion of the tribe of Judah.”
The ruler from Judah will receive the “obedience of the peoples” – that is, nations that are not Jewish.
The genealogy
Christians view this is a prophecy that Jesus will establish an everlasting kingdom in the future. Jesus was born about 2000 years after Jacob died, and his ancestry is traced back to Judah in Luke 3:23-34 and in Matthew 1:1-16.
Luke 3:33 the son of Amminadab, the son of Admin, the son of Arni, the son of Hezron, the son of Perez, the son of Judah
A question raised is: Why do we need two genealogies, especially since Yeshua (Jesus) was not the real son of Joseph? A popular and common answer is: Matthew’s Gospel gives the royal line, whereas Luke’s Gospel gives the real line.
The southern Kingdom of Judah, with its capital in Jerusalem was the birthplace of the Messiah.
In Matthew 1:1 he is called the Son of David and the Son of Abraham. In Luke 3:38 he is called the Son of Adam and the Son of God. As the Son of David, it means that Jesus is king. As the Son of Abraham, it means that Jesus is a Jew. As the Son of Adam, it means that Jesus is a man.
The Messiah would come from the tribe of Judah