It may be lost on some people who have only a shallow and surface knowledge of Christianity or other faiths that religions change all the time “to remain relevant amidst new intellectual developments and new social contexts,” as Michael Farrell in National Catholic Reporter quoted Jerome Baggett, professor of sociology at Carroll College in Helena, Montana. Baggett pointed out that 11th-century pope [Urban II] helped initiate the crusades, and John Paul II asked forgiveness for them.
While one of the appeals of religion is its constancy, steadfastness and enduring eternal truths, religious historians will tell you that the faith of our ancestors is not necessarily the same as contemporary faith. They interpreted things far differently than we do, in entirely different cultural and social contexts. Some examples: