can you show which bible verse you are referring to here please?
I believe God saves any kind of sinner. Acts 19:19 shows where many came together and burned all their sorcery scolls publicly and confessing and repenting of their sinful ways. I also have seen plenty of contemporary christians who have said, including in this forum and at church services, they used to be witches and are now christians. here is a link from some
http://webrings.jlym.com/cgi-bin/webring/list.pl?ringid=exwitchoz;siteid=exwitchozblog, I am not personally involved with them, but they seem sincere.
and why don't we hear more about them? there are probably several reasons, some may include, we aren't listening, also christians do not put much emphasis on our sinful pasts, we share a little bit, but prefer to show and exalt Jesus Christ, and also same reason why church services may not want to be too involved in that kind of talk at church is it may seem to be glorifying evil and satan, we are encouraged to keep focus on God. some things are also very personal and deep, you will know more about people if you get to know them, if not, then people won't tell you much about themselves, that's just some of my thoughts.