What was Noah thinking when he and his family hunkered down in the ark? And waited for the rain to start. Did they wonder if God was really going to do what He said He would? That takes faith. Trusting and obeying before you see how it all turns out.
And Noah and his sons and his wife and his sons' wives with him went into the ark to escape the waters of the flood. Of clean animals, and of animals that are not clean, and of birds, and of everything that creeps on the ground, two and two, male and female, went into the ark with Noah, as God had commanded Noah. And after seven days the waters of the flood came upon the earth. Genesis 7:7-10 ESV