The main purpose of his talk was the idea of contextualization. There are certain things that do not change in the pursuit of preaching the gospel in any culture. For example, in any culture, Jesus is always the way to salvation, the Bible is always the Word of God, etc.
But, we need to contextualize these truths in a manner that is communicable to the culture that is being targeted. Therein lies the most important task in church planting. We say that it is our desire to reach out to the people of Holly Springs, NC who currently do not either know Christ or attend a church. In order for us to accomplish this task effectively, we will need to understand what it is going to take for this type of person to commit to Christ.
What an incredible task that lay before us.