Pope John Paul II
Redemptoris Missio §54
Redemptoris Missio: On the Permanent Validity of the Church's Missionary Mandate
54 In this regard, certain guidelines remain basic. Properly applied, inculturation must be guided by two principles: "compatibility with the gospel and communion with the universal Church." Bishops, as guardians of the "deposit of faith," will take care to ensure fidelity and, in particular, to provide discernment, for which a deeply balanced approach is required. In fact there is a risk of passing uncritically from a form of alienation from culture to an overestimation of culture. Since culture is a human creation and is therefore marked by sin, it too needs to be "healed, ennobled and perfected." This kind of process needs to take place gradually, in such a way that it really is an expression of the community's Christian experience. As Pope Paul VI said in Kampala: "It will require an incubation of the Christian 'mystery' in the genius of your people in order that its native voice, more clearly and frankly, may then be raised harmoniously in the chorus of other voices in the universal Church." In effect, inculturation must involve the whole people of God, and not just a few experts, since the people reflect the authentic sensus fidei which must never be lost sight of Inculturation needs to be guided and encouraged, but not forced, lest it give rise to negative reactions among Christians. It must be an expression of the community's life, one which must mature within the community itself, and not be exclusively the result of erudite research. The safeguarding of traditional values is the work of a mature faith.
Source: Redemptoris Missio (Vatican.va)