Final answer:
Noah's role after the flood was that of a patriarch and the founder of a new human civilization.
Step-by-step explanation:
After the flood, Noah's role in his family and in relation to God was that of a patriarch and the founder of a new human civilization. According to the biblical account, Noah and his family were the only ones chosen by God to survive the flood, which wiped out the rest of humanity due to their wickedness. After the flood, Noah's family would repopulate the earth and his descendants would go on to form various nations and civilizations.