God tells Noah that seven days from now God himself will bring rain down on the earth for fort days and forty nights. God will wipe out everything on earth besides Noah and his family because he has been trusted.
The the lord said to Noah: Go into the ark, you and all your household, for you alone in this generation have I found to be righteous before me. Of every clean animal, take with you seven pairs, a male its mate.."(Gn 7: 1-2).
"Two by two, male and female came to Noah into the ark, just as God had commanded him. When the seven days were over, the waters of the flood came upon the earth" (Gn 7:9-10).
"As the water increased, they lifted the ark, so that it rose above the earth. The waters swelled and increased greatly on the earth, but the ark floated on the surface of the waters. Higher and higher on the earth the waters swelled, until all the highest under the heavens were submerged" (Gn 7: 17-19).
Disasters can hit any time and there is always opportunities for second chances.