Second Peter 2:5 says that Noah was a herald of righteousness. He was a preacher, and announcer heralding righteousness:
English Standard Version
if he did not spare the ancient world, but preserved Noah, a herald of righteousness, with seven others, when he brought a flood upon the world of the ungodly;
New American Standard Bible
and did not spare the ancient world, but preserved Noah, a preacher of righteousness, with seven others, when He brought a flood upon the world of the ungodly;
Before Noah there was
Methusaleh whose father
Enoch had been raptured off of the earth for his walking with God
(Genesis 5:22-24).
But the testimony of
Enoch and the very name of his son
Methuselah also were warning to the people of Noah's day.
Methuselah means something like "When he dies it will come." Now we know why
Methuselah lived longer than any other recorded human being - 969 years
(Gen. 5:27).
God kept him alive to give the sinful people as much time as He possibly could before judgment must fall. Don't think that God will tolerate indefinitely the sins of the world. He will not. He may prolong the time for men to repent, responding to the heralding of righteousness. But He will not tolerate our sins forever as some people seem to think God should.
There is another thing to consider. God's judging of a society may not be the precise judging of each individual in that society as to his or her eternal destiny.
I believe that America is under God's judgment today. That does not mean that if some calamity should cause deaths, that each individual who suffered or died is specifically being judged for some judgment causing evil. Nor does it mean that that calamity determined there eternal judgment with their lives.
Many critics of my Christian faith argue in a way that fails to see the distinction of God's judging a society and His judgment of an individual life.