This question only concerns the prophecy of the 70 years of Isa 23:15-17, which predicts that the city of Tyre would be destroyed and forgotten for 70 years after which, it would return to its previous “promiscuous” way.
Isaiah 23:15 (NASB)
15 "Now in that day Tyre will be forgotten for seventy years like the
days of one king. At the end of seventy years it will happen to Tyre
as in the song of the harlot:"
God through his prophet Jeremiah, includes Tyre among the nations that will be singled out to drink the wine of His rage. He says: “These nations will have to serve the king
of Babylon seventy years."
Jeremiah 25:22,27 (NASB)
22 "And all the kings of Tyre, all the kings of Sidon and the kings of
the coastlands which are beyond the sea; 27 “You shall say to them,
‘Thus says the Lord of hosts, the God of Israel, “Drink, be drunk,
vomit, fall and rise no more because of the sword which I will send
Following the destruction of the mainland city by the Babylonians, the island-city of Tyre will be forgotten. True to the prophecy, for the duration of "one king", the Babylonian Empire, the island-city of Tyre will not be an important financial and commercial power.
The prophecy of Jeremiah says:
Jeremiah 25:8-17 (NASB)
8 “Therefore thus says the Lord of hosts, ‘Because you have not obeyed
My words, 9 behold, I will send and take all the families of the
north,’ declares the Lord, ‘and I will send to Nebuchadnezzar king of
Babylon, My servant, and will bring them against this land and against
its inhabitants and against all these nations round about; and I will
[a]utterly destroy them and make them a horror and a hissing, and an
everlasting desolation. 10 Moreover, I will [b]take from them the
voice of joy and the voice of gladness, the voice of the bridegroom
and the voice of the bride, the sound of the millstones and the light
of the lamp. 11 This whole land will be a desolation and a horror, and
these nations will serve the king of Babylon seventy years.
Babylon Will Be Judged
12 ‘Then it will be when seventy years are completed I will punish the
king of Babylon and that nation,’ declares the Lord, ‘for their
iniquity, and the land of the Chaldeans; and I will make it an
everlasting desolation. 13 I will bring upon that land all My words
which I have pronounced against it, all that is written in this book
which Jeremiah has prophesied against all the nations."
14 "For many nations and great kings will make slaves of them, even
them; and I will recompense them according to their deeds and
according to the work of their hands.)’”15 For thus the Lord, the God
of Israel, says to me, “Take this cup of the wine of wrath from My
hand and cause all the nations to whom I send you to drink it. 16 They
will drink and stagger and go mad because of the sword that I will
send among them.”17 Then I took the cup from the Lord’s hand and made
all the nations to whom the Lord sent me drink it:"
Tyre , comes out from under Babylonian domination, and becomes a satrapy of the Medo-Persian Empire under, the King "Cyrus the Great." Cyrus is a tolerant ruler and allows Tyre to pursue her former activities to become a world commercial center, and compares her to a prostitute: "Then she will go back to her harlot’s wages and will play the harlot with all the kingdoms [a]on the face of the earth."(Isaiah 25:17b")
Isaiah 23:15b-17 (NASB)
15 b . At the end of seventy years, it will happen to Tyre as in the song of the harlot: 16 Take your harp, walk about the city, O forgotten harlot; Pluck the strings skillfully, sing many songs, That you may be remembered. 17 It will come about at the end of seventy years that the Lord will visit Tyre. Then she will go back to her harlot’s wages and will play the harlot with all the kingdoms [a]on the face of the earth.
Will Tyre succeed? Yes, Zechariah 9:3 says:
Zechariah 9:3 (NASB)
3 "For Tyre built herself a fortress And piled up silver like dust,
And gold like the mire of the streets.
Why does God allow Tyre to succeed? The prophecy of Isaiah says: "her harlot’s wages will be set apart to the Lord". God maneuvers matters so that it is used for the purpose of the will of the LORD-GOD.
Isaiah 23:18 (NASB)
18 "Her gain and her harlot’s wages will be set apart to the Lord; it
will not be stored up or hoarded, but her gain will become sufficient
food and choice attire for those who dwell in the presence of the
The people of Tyre assist the Israelites that return from their captivity in Babylon, by supplying them with cedar timbers for rebuilding the temple. They also resume trade with the city of Jerusalem. (Ezra 3:7; Nehemiah 13:16.)