No it wasn't just as God said. God said 40 days.
There is considerable spiritual significance to the "40 days" when one compares the Scriptures with Scriptures. There are several instances where "40 days" is used to denote a time of grace, within the context of judgment. For example: Noah being secured in the ark for 40 days while the rest of the world was flooded in judgment from God. Jesus Himself demonstrated a 40-day sanctification through testing.
The revelation of a time frame was intended to bring repentance, even though the eventual overthrow happened later.
I fear you are emphasizing the literal timing, more than the message and its eventual results.
ording to Jonah 3:10 and Jeremiah 18 and the other dozen or so prophecies that did not come to pass.
Now you are confusing commands with prophecy. When God commands men to believe in order to live and receive His blessings, it is not prophecy of what men will do, but a declaration of what men SHOULD do.
The Law was not given in expectation that mankind would obey it. The Law was given to reveal the total depravity of all men and to shine light upon their utter sinfulness and inability to be righteous under the Law.
The fact that Israel failed to obey the Law does not mean that God changes His Word or His mind or His purposes.
I fully expect the prophecies in Revelation to come to pass. The idea that mankind as a whole will repent is so unlikely that it's hardly worth discussing but the point holds that IF the world repents then so will God.
Then you are forming a doctrine based on pure speculation, rather than faith in God's word.
Nang