Keturah was a wife and a concubine of the Biblical patriarch Abraham. According to the Book of Genesis, Abraham married Keturah after the death of his first wife, Sarah. Abraham and Keturah had six sons. According to Jewish tradition, she was a descendant of Noah's son Japheth.

Abraham is the common Hebrew patriarch of the Abrahamic religions, including Judaism, Christianity, and Islam. In Judaism, he is the founding father of the special relationship between the Jews and God; in Christianity, he is the spiritual progenitor of all believers, whether Jewish or non-Jewish; and in Islam, he is a link in the chain of Islamic prophets that begins with Adam and culminates in Muhammad.