]Daniel 9
26 “And after the sixty-two weeks
Messiah shall be cut off, but not for Himself;
And the people of the prince who is to come
Shall destroy the city and the sanctuary.
The end of it shall be with a flood,
And till the end of the war desolations are determined.
27 Then he shall confirm a covenant with many for one week;
But in the middle of the week
He shall bring an end to sacrifice and offering.
And on the wing of abominations shall be one who makes desolate,
Even until the consummation, which is determined,
Is poured out on the desolate.”
The "He" refers to the Messiah since the whole prophecy is about the Messiah and there is no other singular person mention until later.
However "shall be one who makes desolate" refers to another person different from "He" who ends sacrifice.
Otherwise they would have said "and on the wing of abominations HE shall make desolate" but that is not how it reads...
Leviticus 26:33-35
New King James Version (NKJV)
33 I will scatter you among the nations and draw out a sword after you;
your land shall be desolate and your cities waste.
34 Then the land shall enjoy its sabbaths as long as it lies desolate and you are in your enemies’ land;
then the land shall rest and enjoy its sabbaths.
35 As long as it lies desolate it shall rest—
for the time it did not rest on your sabbaths when you dwelt in it.
God fulfilled His prophecy in 70 AD. whether you accept it or not is your choice.
Deuteronomy 31
16 And the Lord said to Moses: “Behold, you will rest with your fathers; and this people will rise and play the harlot with the gods of the foreigners of the land, where they go to be among them, and they will forsake Me and break My covenant which I have made with them. 17 Then My anger shall be aroused against them in that day, and I will forsake them, and I will hide My face from them, and they shall be devoured. And many evils and troubles shall befall them, so that they will say in that day, ‘Have not these evils come upon us because our God is not among us?’ 18 And I will surely hide My face in that day because of all the evil which they have done, in that they have turned to other gods.
19 “Now therefore, write down this song for yourselves, and teach it to the children of Israel; put it in their mouths, that this song may be a witness for Me against the children of Israel. 20 When I have brought them to the land flowing with milk and honey, of which I swore to their fathers, and they have eaten and filled themselves and grown fat, then they will turn to other gods and serve them; and they will provoke Me and break My covenant. 21 Then it shall be, when many evils and troubles have come upon them, that this song will testify against them as a witness; for it will not be forgotten in the mouths of their descendants, for I know the inclination of their behavior today, even before I have brought them to the land of which I swore to give them.”
Deuteronomy 32
15 “But Jeshurun grew fat and kicked;
You grew fat, you grew thick,
You are obese!
Then he forsook God who made him,
And scornfully esteemed the Rock of his salvation.
16 They provoked Him to jealousy with foreign gods;
With abominations they provoked Him to anger.
17 They sacrificed to demons, not to God,
To gods they did not know,
To new gods, new arrivals
That your fathers did not fear.
18 Of the Rock who begot you, you are unmindful,
And have forgotten the God who fathered you.
19 “And when the Lord saw it, He spurned them,
Because of the provocation of His sons and His daughters.
20 And He said: ‘I will hide My face from them,
I will see what their end will be,
For they are a perverse generation,
Children in whom is no faith.
21 They have provoked Me to jealousy by what is not God;
They have moved Me to anger by their foolish idols.
But I will provoke them to jealousy by those who are not a nation;
I will move them to anger by a foolish nation.
22 For a fire is kindled in My anger,
And shall burn to the lowest hell;
It shall consume the earth with her increase,
And set on fire the foundations of the mountains.
23 ‘I will heap disasters on them;
I will spend My arrows on them.
24 They shall be wasted with hunger,
Devoured by pestilence and bitter destruction;
I will also send against them the teeth of beasts,
With the poison of serpents of the dust.
25 The sword shall destroy outside;
There shall be terror within
For the young man and virgin,
The nursing child with the man of gray hairs.
26 I would have said, “I will dash them in pieces,
I will make the memory of them to cease from among men,”
27 Had I not feared the wrath of the enemy,
Lest their adversaries should misunderstand,
Lest they should say, “Our hand is high;
And it is not the Lord who has done all this.”’
28 “For they are a nation void of counsel,
Nor is there any understanding in them.
29 Oh, that they were wise, that they understood this,
That they would consider their latter end!
30 How could one chase a thousand,
And two put ten thousand to flight,
Unless their Rock had sold them,
And the Lord had surrendered them?
31 For their rock is not like our Rock,
Even our enemies themselves being judges.
32 For their vine is of the vine of Sodom
And of the fields of Gomorrah;
Their grapes are grapes of gall,
Their clusters are bitter.
33 Their wine is the poison of serpents,
And the cruel venom of cobras.
34 ‘Is this not laid up in store with Me,
Sealed up among My treasures?
35 Vengeance is Mine, and recompense;
Their foot shall slip in due time;
For the day of their calamity is at hand,
And the things to come hasten upon them.’
36 “For the Lord will judge His people
And have compassion on His servants,
When He sees that their power is gone,
And there is no one remaining, bond or free.
37 He will say: ‘Where are their gods,
The rock in which they sought refuge?
38 Who ate the fat of their sacrifices,
And drank the wine of their drink offering?
Let them rise and help you,
And be your refuge.
39 ‘Now see that I, even I, am He,
And there is no God besides Me;
I kill and I make alive;
I wound and I heal;
Nor is there any who can deliver from My hand.
40 For I raise My hand to heaven,
And say, “As I live forever,
41 If I whet My glittering sword,
And My hand takes hold on judgment,
I will render vengeance to My enemies,
And repay those who hate Me.
42 I will make My arrows drunk with blood,
And My sword shall devour flesh,
With the blood of the slain and the captives,
From the heads of the leaders of the enemy.”’
43 “Rejoice, O Gentiles, with His people;[a]
For He will avenge the blood of His servants,
And render vengeance to His adversaries;
He will provide atonement for His land and His people.”
