Interesting Title for a Christmas Recording

While visiting Sam's Club today, I noticed that several Time-Life compilations of Christmas music were being offered for sale.

There was a "A Treasury of Christmas", featuring classic Christmas standards by the likes of Bing Crosby, Nat King Cole, Perry Como, etc. There was "A Country Christmas", featuring Christmas songs by Country and Western artists of yesterday and today. There was "A Classical Christmas", featuring classical music of the season.

But the title that caught my eye was "A Christian Christmas", featuring contemporary Christian musicians.

"A Christian Christmas"? As opposed to ...?