There are many people who claim that mankind is inherently good. Yet the Bible tells us that we are born with a sin nature…that from birth our hearts are infected with the sin of Adam and Eve. Look at any child, almost the first word they learn is “No!” Righteousness can only come from a heart transplant through faith in the sacrifice of Yeshua.
In the time of Noah, every nation, every people, every person was wicked and sought only evil. God had to act.
Genesis 6: 11-13, 17
11 The earth also was corrupt before God, and the earth was filled with violence. 12 So God looked upon the earth, and indeed it was corrupt; for all flesh had corrupted their way on the earth. 13 God said to Noah, “The end of all flesh has come before Me, for the earth is filled with violence through them; and behold, I will destroy them with the earth.
17 And behold, I Myself am bringing floodwaters on the earth, to destroy from under heaven all flesh in which is the breath of life; everything that is on the earth shall die.