H. Richard Niebuhr quotes
The conservation, selection, and conversion of cultural achievements is not only a fact; it is also a morally inescapable requirement, which the exclusive Christian must meet because he is a Christian and a man. If he is to confess Jesus before men, he must do so by means of words and ideas derived from culture, though a change of meaning is also necessary. ... If he is to say what "love" means he must choose among such words as "eros," "philanthropia" and "agape," or "charity," "loyalty" and "love"-seeking one that comes close to the meaning of Jesus Christ, and modifying it by use in context. These things he must do, not only that he may communicate, but also that he may himself know whom and what he believes. When he undertakes to fulfill the demands of Jesus Christ, he finds himself partly under the necessity of translating into the terms of his own culture what was commanded in the terms of another.
H. Richard Niebuhr