関連ワード:  why is christmas on dec. 25    why is christmas on dec 25 in the bible    why is christmas on dec 25    why is christmas on december 25    why is christmas on december 25 catholic    why is christmas on december 25 catholic answers    why is christmas on december 25 bible verse    why is christmas on december 25 reddit    why is christmas on december 25tg    why is christmas on december 25 christianity