Culture was originally connected to cultivating, or gardening.
Among many technical definitions, basically, culture is the way things are done around here.
Our world is a multi-cultural place, even sporting cultures within cultures: work cultures, educational cultures, religious cultures, age and gender specific cultures, etc.
Leaders can work to understand the culture, but changing the culture is far from easy, if not impossible. The idea has been presented that leaders must create new cultures to draw people into a new way of thinking, believing, or behaving.
Jesus followed this approach to a first century culture, leaving us to consider how we will lead in a twenty-first century culture.