Despite tons of godless people in the times of Noah that were on Earth, God found one Noah and He called out Noah to give him a work to do for the sake of the earth. Noah found grace in the sight of God because he walked with God.
Because of this, Noah became an illustration of saving faith and through him life continued on earth after the flood.
As a believer in the birth, death and resurrection of our loving Lord Jesus Christ, you have been made holy in Him because Jesus is Holy and as such all authority has been given to you in heaven and on Earth.
Go therefore and make disciples of all nations, baptizing them in the name of the father and of the son and of the Holy spirit, teaching them to observe everything God's word says.
That's a task God has given to you and me, it means much more because Christ Jesus died for every man and the most important thing is to do it well. Do the word of God and do it well.
Matthew 28:19-20 (NIV)
Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
20 and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.”
Amen