This article focuses on the expansion of Christian mission in the 19th century. Some scholars and some research have indicated that Christian mission should be scrutinized under the empire-colony framework. They point out that advances in Christian mission have benefited from this framework that conveniently propels Christian mission forward. They even go as far as to argue that Christian mission belittles other religions. However, a closer look at Christian theologies from that period reveals this was not always the case. When Christians encountered people from other religions through Christian mission, they were not always arrogant colonizers. Though their attitudes and responses started out from the theological standpoint that there was no salvation outside the church, they slowly adjusted their focus to "Justice, Courtesy, and Love". This article will draw from the theological perspectives of the 19th century Anglican theologian Frederick Denison Maurice. It will supplement these with the attitudes and perspectives displayed by George Leslie Mackay when he encountered people from other religions. Mackay ministered in Taiwan as a missionary during the same century. This article explores how 19th century Christians viewed people from other religions through the lenses of theological theories and missional practices. It concludes that, under the influence of a theology advocating the existence of Christ before his incarnation, this 19th century view of other religions is different from the 20th century antagonistic view.