The beginning of the twenty-first century faces new challenges in the field of business ethics. Totally new macro-ethical challenges have arisen and they have already inspired constant ethical reflection. Two major developments in the field of economics paved the way for this new interest in business ethics: the total dominance of the market driven economy and economic globalization. This article investigates the ethical challenges posed by this new environment from a Christian ethical perspective. Firstly norms are formulated flowing from the paradigm of Christian attitude as a manifestation of the attitude of Christ. These are love, stewardship, self-denial and obedience to God. These norms are then applied to the following modern-day issues in the field of business ethics: the challenge of globalization, respect for basic human rights, remuneration, the corporation as a moral model, the need for self-evaluation, political responsibility and environmental concern. In conclusion I attempt to define the role of Christians and Christian churches in transforming corporations into moral agents.