The official position of the LDS Church is that those who have accepted Mormonism or are a part of the Latter Day Saint movement are primarily from the House of Joseph. Adherents believe they are members of one of the tribes of Israel, either by blood lineage or by adoption, when the recipient is not a literal descendant of Jacob, also known as Israel. Individual church members are told their tribal affiliation through a patriarchal blessing. The LDS Church teaches that all of the tribes exist within their numbers, though not every tribe in every country. Ephraim and Manasseh are by far the two largest tribes in the LDS Church.