The notion of common home, a term used by the current Catholic Pope to call for care for the planet we live in, also refers to the Christian faith s ideal that all people, in harmony with all creation, under God s care and guidance, will live in joyful, peaceful and just relationships, according to the original purpose of creation. Having this project as an integral part of their faith, it is up to Christians to seek to collaborate in a decisive way for its concrete realization. And, as a sign of this purpose, it is necessary to witness the possibility of expressions of visible unity, beginning with Christians themselves. In the same way, the care for the planet evidences the Christian hope for the renewal of the whole world, and thus Christians must be protagonists in this urgent issue of this time. This work brings Christian unity and ecology together, seeing them as issues of the common home, and seeks in the issue of holiness a foundation of faith and spirituality to motivate reflection and practical engagement on these issues. As a more concrete expression of this, it will relate John Wesley s and Pope Francis approaches to holiness in order to see how holiness in fact can promote these issues of the common home, which points to the viability of this relationship in other Christian traditions.