Actually, I think it is very significant. What we call things not only reflect, but directs what we think. If I was to be given the title of co-governor of Idaho, by the actual government of Idaho, even if the title was honorary, it would reflect how the government of Idaho thinks of me and would influence how they treat me in the future. The title of redeemer is applied because his life was exchanged for us, setting us free while he bore the punishment. I cannot share that relationship with Mary. She did not die vicariously for me. She did not bear my sin. Her life was not exchanged for me. To give her the title, as some are moving to do, would be blaspheme and idolatry.