Why did God destroy the antediluvian world?

Answer

"And God saw that the wickedness of man was great in the earth. . . . And the Lord said, I will destroy man
whom I have created from the face of the earth." Gen. 6: 5-7.

What record answers to this prophecy?
On what basis is there no possibility of justification for the sinner?
To whom does vengeance belong?
What did God purpose to do with the people of that day?
Why was woe at this same time proclaimed to the world?
When and by whom was the Council of Nice convened?
What is the next event mentioned in the prophecy?

Questions & Answers are from the book Bible Readings for the Home Circle