Noah’s Ark is a great example of God at work. He chose a faithful man, Noah, and told him that because of the sin on earth, He had to cleanse the planet. Noah and his family had exhibited faith all their lives, and it showed when Noah began to build a massive ark to house his family and a male and female of all species on earth. His faith was tested because there was no rain in sight, and many people who knew him, thought he was crazy. However, after 40 days and nights of rain, Noah and his family were saved.