It is a fact that the God's word foretold Jehovah would have witnesses. It is a fact that Jesus foretold that before the end comes the good news would be preached in all the inhabited earth (Matthew 24:14). And it is a fact these prophecies are in fulfillment today.
The Bible is replete with verifiable and accurate prophecies such as these. I could give you dozens of other examples.
One such example:
Jehovah through his prophet Isaiah foretold that Babylon, then the world power would be swept with the "broom of annihilation" and would never be inhabited again. (Isaiah 13:19; 14:22, 23). Isaiah describes in exact detail how Babylon would fall, and even names the person who would do it 200 years before he was born:
(Isaiah 44:27-45:1) . . .The One saying to the deep waters, ‘Be evaporated, And I will dry up all your rivers’; 28 The One saying of Cyrus, ‘He is my shepherd, And he will completely carry out all my will’; The One saying of Jerusalem, ‘She will be rebuilt,’ And of the temple, ‘Your foundation will be laid.’” 45 This is what Jehovah says to his anointed one, to Cyrus, Whose right hand I have taken hold of To subdue nations before him, To disarm kings, To open before him the double doors, So that the gates will not be shut.
The prophecy goes into such exact detail (which was confirmed in Herodotus' Histories) that critrics even to this day cannot believe the prophecy was written hundreds of years before it happened. Jehovah God named Cyrus by name 200 years before he was born. The fact that Isaiah was written long long ago is provided in the Dead Sea Scrolls. The Isaiah Scroll was carbon dated to 300 B. C. E. So it had long been considered as canon by that time.
Still Babylon did not become uninhabited until centuries after Jesus died.
Isaiah 13:20 states about Babylon:
"“She will never be inhabited, nor will she reside for generation after generation. And there the Arab will not pitch his tent, and no shepherds will let their flocks lie down there.”
Jehovah had the prophet Jeremiah prophecy about Babylon:
"And Babylon will become piles of stones, A lair of jackals, An object of horror and something to whistle at, Without an inhabitant."-Jeremiah 51:37.
In the first century C.E., there was a settlement of Jews in Babylon, and the Bible writer Peter visited there. (
1 Peter 5:13) By that time, the Dead Sea Scroll of Isaiah had been in existence for the better part of two centuries. So, as of the first century C.E., Babylon still was not completely desolate, yet Isaiah’s book had been finished long before then.
According to the Hebrew scholar Jerome (fourth century C.E.), by his day Babylon was a hunting ground in which “beasts of every type” roamed. Babylon remains desolate to this day.
Isaiah never lived to see Babylon become uninhabited. But the ruins of that once powerful city, about 50 miles south of Baghdad, in modern Iraq, bear silent testimony to the fulfillment of his words: “She will never be inhabited.” Babylon’s “progeny and posterity” are gone forever.—
Isaiah 13:20; 14:22, 23.
We could go on and on and on with accurate reliable provable verifiable evidence that Bible prophecy is not just "unevidenced assertions" assumptions and claims that cannot be verified.