If only Noah's family survived the flood, and we are all related from them, why are we not Jewish?

The story of Noah's Ark and the flood is part of the biblical narrative found in the Book of Genesis, which is foundational to several religious traditions, including Judaism, Christianity, and Islam. According to this story, Noah, his family, and pairs of animals were saved from a global flood through the construction of an ark.

However, the concept of a global flood and Noah's family being the sole survivors is interpreted differently within various religious traditions. In Judaism, Noah and his family are considered righteous individuals who were chosen by God to survive the flood, but their descendants are not automatically considered Jewish. Instead, Jewish identity is traced through the lineage of Abraham, who is considered the father of the Jewish people.

According to Jewish tradition, Abraham's descendants, beginning with his son Isaac and grandson Jacob (also known as Israel), formed the twelve tribes of Israel. The covenant between God and the Jewish people, as articulated in the Torah (the first five books of the Hebrew Bible), is established through this lineage. Therefore, Jewish identity is primarily determined by descent from the ancient Israelites and adherence to the covenant established with God at Mount Sinai.

In Christianity, while the story of Noah is also part of the biblical narrative, the focus is more on the fulfilment of God's covenant through Jesus Christ rather than direct descent from Noah. Similarly, in Islam, Noah (known as Nuh in Arabic) is considered a prophet, but the concept of Jewish identity as understood in Judaism is not present.

Therefore, while Noah's family is considered ancestral to many people according to the biblical narrative, the development of specific religious identities, including Judaism, is based on other factors such as lineage, covenant, and religious teachings specific to each tradition.