[Cronos]

Cronos: I say God KNEW completely what was going to take place, only He wasn't (and isn't) slave to some plan.

HD: Really???

Ok, then, you say that God is a slave to *drum roll* THE PLAN?

So, God's plan to destroy Nineveh was a lie -- are you saying God lied?

[HarleyD]

Ok, then, you say that God is a slave to *drum roll* THE PLAN?

God made a plan. Everything God does is perfect. Therefore it is a perfect plan and is as good as it will ever get. God isn't a slave to this plan. It's simply the perfect plan. Why would God want to "change" a perfect plan?

So, God's plan to destroy Nineveh was a lie -- are you saying God lied?

“God is not a man, that He should lie, nor a son of man, that He should repent; has He said, and will He not do it? Or has He spoken, and will He not make it good?”
—Numbers 23:19

“And also the Glory of Israel will not lie or change His mind; for He is not a man that He should change His mind.”
—1 Samuel 15:29

“To confess that God exists, and at the same time to deny that He has foreknowledge of future things, is the most manifest folly.”
—Augustine

You can't say God lied. You can't say God repented (change His mind). You can't say God didn't know what would happen. You can only say this is the events as they happen.

We know God has a plan for everyone's life.
We know God doesn't repent.
We know God doesn't lie.
We know God ordains everything.

Therefore...

God's threat to destroy Nineveh was legitimate.
God also knew He wasn't going to destroy Nineveh.