Behold, the days come, says Jehovah, that I will raise to David a righteous Branch, and a King shall reign and act wisely, and shall do judgment and justice in the earth.

And you, Bethlehem Ephratah, you being least among the thousands of Judah, out of you He shall come forth to Me, to become Ruler in Israel, He whose goings forth have been from of old, from the days of eternity.

"And you, Bethlehem, in the land of Judah, are not the least among the governors of Judah. For out of you shall come a Governor who shall rule My people Israel."

For it is evident that our Lord sprang out of Judah, of which tribe Moses spoke nothing concerning priesthood.

Birthright was

The blessings of your father are above the blessings of my ancestors, to the utmost bound of the everlasting hills. They shall be on the head of Joseph, and on the crown of the head of him, the ruler, the leader of his brothers.

For whom He foreknew, He also predestinated to be conformed to the image of His Son, for Him to be the First-born among many brothers.

General references

Of the sons of Judah, by their generations, according to their families, by their fathers' house, according to the number of the names, from twenty years old and upward, all able to go forth to war:

these are the families of Judah by their numbered ones, seventy-six thousand and five hundred.

then it shall be in the day when he makes his sons to inherit what he has, he may not cause to inherit the son of the beloved first-born before the son of the hated one, he who is truly the first-born.