In the Bible, who was the third son of Adam and Eve?

Seth, in Judaism, Christianity, Mandaeism, Sethianism, and Islam, was the third son of Adam and Eve and brother of Cain and Abel, who were the only other of their children mentioned by name in the Tanakh (Hebrew Bible). According to Genesis 4:25, Seth was born after Abel's murder, and Eve believed God had appointed him as a replacement for Abel.

According to Genesis, Seth was born when Adam was 130 years old "a son in his likeness and image". The genealogy is repeated at 1 Chronicles 1:1–3. Genesis 5:4–5 states that Adam fathered "sons and daughters" before his death, aged 930 years. According to the Bible, Seth lived to the age of 912.

Adam and Eve, according to the creation myth of the Abrahamic religions, were the first man and woman. They are central to the belief that humanity is in essence a single family, with everyone descended from a single pair of original ancestors. It also provides the basis for the doctrines of the fall of man and original sin that are important beliefs in Christianity, although not held in Judaism or Islam.