A formal conversion is also sometimes undertaken to remove any doubt as to the Jewishness of a person who wishes to be considered a Jew.

However, without a formal conversion, many highly observant Jews will reject a convert's Jewish status.

This is called a formal conversion.

It may also lead to significant transformation in Jewish self-concept, which has long been based on parentage or formal conversion.

He would require those who wanted to "return" to undergo a formal, full conversion as their people had been separated from Judaism for so long.

However, Lake jokes that he was Jewish in the eyes of others well before his formal conversion.

He has required them to undergo formal conversion to Judaism, however, because of their long interruption from the people.

The data on which Bulliet's study was based limited the validity of this paradigm to generalizations about full, formal conversions in an urban environment.

This departed from the traditional position requiring formal conversion to Judaism for children without a Jewish mother.

Whether such persons are required to undergo a full formal conversion depends on the community and their individual circumstances.