The story of Noah's Ark comes from the Bible, where God decides to flood the earth to cleanse it of wickedness. He chooses a man named Noah to build a large boat, or ark, to save his family and pairs of every animal. Noah follows God's instructions, gathering animals and preparing for the flood. When the rain begins, Noah, his family, and the animals enter the ark. They stay safe inside while the world outside is submerged in water. After many days, the floodwaters recede, and Noah sends out a dove to find dry land. Eventually, they all leave the ark, and God promises never to flood the earth again, symbolized by a rainbow.