You don't understand anything that you read - can you not can't how many times God changed His mind in the Bible, or granted a change of plan due to the pleading of His faithful
God reveals things for our sake, not His.
We have to learn how rebellious and obstinate that we are, not Him.
If it wasn't for the tests that God allows us to undergo, we'd all think that we were pretty good people
The wages of sin is death - they were warned, and Noah's relatives did not take him seriously.
God was being merciful by letting them live as long as He did. Even during the conquest, He waited until their sins reached an intolerable level
God changes His mind for our sake, not for His.
Christ fulfilled the Law which held us all condemned, therefore it can be abrogated
You're not understanding anything that's being said.
The fact the that 8 people survived has given hope to all those who have descended from Noah - elucidating the ineffable and immeasurable mercy of God.