Following are the prophecies about SHILOH, the King Mashiach promised by HASHEM. The Mashiach will be a human being chosen and anointed by Hashem who will give him power and authority to fulfil many tasks for his glory.

1. His mission and tasks

The promised Mashiach will fulfill God's salvation plan 

Isaiah 53:10
Yet it pleased HASHEM to crush him by disease; to see if his soul would offer itself in restitution, that he might see his seed, prolong his days, and that the purpose of HASHEM might prosper by his hand: 

Hashem will put his spirit and his word in Mashiach and will use him  to make the new covenant with his people

Isaiah 59:21
21 And as for Me, this is My covenant with them, saith HASHEM; My spirit that is upon thee, and My words which I have put in thy mouth, shall not depart out of thy mouth, nor out of the mouth of thy seed, nor out of the mouth of thy seed’s seed, saith HASHEM, from henceforth and for ever.

Shiloh will be king of all the nations and all the peoples of the earth will obey him.

Genesis 49:10
The scepter will not depart from Judah, nor the ruler’s staff from between his feet, until he comes to whom it belongs. To him will the obedience of the peoples be.

Mashiach will be given power, glory, authority, and dominion over all nations; the peoples of all nations, all languages will serve and obey him

Daniel 7:27 & 13-14
The kingdom and the dominion, and the greatness of the kingdoms under the whole sky, shall be given to the people of the saints of the Most High: his kingdom is an everlasting kingdom, and all dominions shall serve and obey him.

Hashem will make the new covenant with the people and will make them the light of the nations

Isaiah 42:6, 49:8
6 I HASHEM have called thee in righteousness, And have taken hold of thy hand, And kept thee, and set thee for a covenant of the people, For a light of the nations; 

Hashem will use Shiloh to return all the scattered children of Jacob to the land of their fathers

Isaiah 66:20
20 And they shall bring all your brethren out of all the nations for an offering unto HASHEM, upon horses, and in chariots, and in fitters, and upon mules, and upon swift beasts, to My holy mountain Jerusalem, HASHEM, as the children of Israel bring their offering in a clean vessel into the house of HASHEM.

Mashiach will restore the kingdom of Israel and bring together the tribes of Ephraim and Judah

Isaiah 49:5-6
Now says Yahweh who formed me from the womb to be his servant, to bring Jacob again to him, and that Israel be gathered to him (for I am honorable in the eyes of HASHEM, and my God has become my strength); yes, he says, “It is too light a thing that you should be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give you for a light to the nations, that you may be my salvation to the end of the earth.”

Shiloh will bring the people of the nations to HASHEM, all will know him and serve him alone

Zechariah 2:11
Many nations shall join themselves to Yahweh in that day, and shall be my people; and I will dwell in the midst of you, and you shall know that HASHEM of Armies has sent me to you.

Mashiach will bring total peace on earth and will end wars between nations

Isaiah 2:4 & 11:9
He will judge between the nations, and will decide concerning many peoples; and they shall beat their swords into plowshares, and their spears into pruning hooks. Nation shall not lift up sword against nation, neither shall they learn war any more

Mashiach Messiah will justify many through his knowledge and teachings of God's word

Isaiah 53:11
Of the travail of his soul he shall see to the full, even My servant, who by his knowledge did justify the Righteous One to the many, and their iniquities he did bear. 

Mashiach will offer the atonement sacrifice before HASHEM for the sins of many.

Isaiah 53:10
Yet it pleased HASHEM to bruise him has caused him to suffer. When you make his soul an offering for sin, he shall see his seed. He shall prolong his days, and the pleasure of HASHEM shall prosper in his hand. 

Mashiach will build the new temple of HASHEM and will reign on his throne, he will be King and high priest

Zechariah 6 :12-13, Amos 9:11
and speak to him, saying, ‘Thus says HASHEM of Armies, “Behold, the man whose name is the Branch: and he shall grow up out of his place; and he shall build the temple of HASHEM; even he shall build the temple of HASHEM; and he shall bear the glory, and shall sit and rule on his throne; and he shall be a priest on his throne; and the counsel of peace shall be between them both.

2. His origin 

The promised Mashiach must be a descendant of the heir of the blessings of Abraham in order to rule over all peoples of the world. Abraham was the first person on whom Hashem put the blessings of all nations

Genesis 22:18
In your seed will all the nations of the earth be blessed, because you have obeyed my voice.” 

The last heir of Abraham's blessings was JOSEPH

Genesis 49:26
The blessings of your father have prevailed above the blessings of your ancestors, above the boundaries of the ancient hills. They will be on the head of Joseph, on the crown of the head of him who is separated from his brothers. 

Hashem revealed to Joseph in vision about his authority over all peoples and creatures of the universe

Genesis 37:9

And he dreamed yet another dream, and told it to his brethren, and said: ‘Behold, I have dreamed yet a dream: and, behold, the sun and the moon and eleven stars bowed down to me.