Noah said it would happen with the power of water. He preached for a hundred and twenty years stating how this would take place. Noah was Methuselah's grandson. By faith Noah, when warned about things not yet seen, in holy fear, built an ark to save his family. By his faith he condemned the world and became heir of the righteousness that comes by faith.
Faith is a very important thing.
Faith is what caused Noah to build that ark. And today, we need faith. Otherwise everything we do will be in vain. Noah got busy building an ark. White bearded Methuselah must have hobbled over to see his grandson building that ark.