Question:

I'm not sure if this relates to Christianity, but is it a sin to not get ones last name legally changed after getting married, if you're a woman?

Answer:

There is nothing unscriptural about the practice, which is cultural. There is nothing wrong with changing names. There are several Bible characters whose names were changed:

  • Abram - Abraham
  • Sarai - Sarah
  • Jacob - Israel
  • Simon - Peter