What exactly is Christian about the Christian’s work?

"The difference between the Christian’s work and the non-Christian’s work seems to lie more in the worker than in the work. The distinctiveness is found primarily in the Christian worker’s understanding of (1) who God is, (2) the nature of work as created, fallen, and redeemed, (3) the way God uses his or her work to serve others, and (4) the ultimate goal of his or her work—namely, the glory of God. This may not produce a distinctively Christian kind of work, product, or business, but it will contribute to the development and sanctification of a distinctively Christian person."