Rashi famously writes that Noah did not fully believe that God would bring a flood and refused to enter the ark until the waters pushed him inside This is troubling. God called Noah a perfectly righteous person, so how could Rashi write that Noah didn’t believe a flood was coming? Some explain that Noah believed that the people would repent and do what’s right- he didn’t believe God would need to bring a flood, he didn’t believe that God would need to destroy the world. In other words, Noah thought the best of people and this is part of being a perfectly righteous person.