He says,"By doing evangelism. I know numerous groups that claim to be engaging in “holistic” ministry because they are helping the poor in Chicago or because they are digging wells in the Sahel, even though few if any of the workers have taken the time to explain to anyone who Jesus is and what he has done to reconcile us to God. Their ministry isn’t holistic; it’s halfistic, or quarteristic."
For the rest of his response, you can read it at The Gospel Coalition Blog
