Steve Ray (Roman Catholic) writes: From the early centuries Mary was considered the All Holy One and considered as without sin. Rom 3:23 is a general statement but does not mention exceptions to the rule. For example, Jesus was a man without sin, therefore an exception. Jesus did not come short of the glory of God, because Jesus is God.
Alpha and Omega Ministries is a Christian apologetics organization based in Phoenix, Arizona. James White, director, is a professor, having taught Greek, Systematic Theology, and various topics in the field of apologetics for numerous schools.