T4G is a conference held bi-annually in Louisville, KY. From the T4G site:

Together for the Gospel (T4G) began as a friendship between four pastors. These friends differed on a number of theological issues, like baptism and the charismatic gifts. But they were committed to standing together for the main thing—the gospel of Jesus Christ.

T4G is convinced that the gospel of Jesus Christ has been misrepresented, misunderstood, and marginalized in many churches and among those who proclaim the name of Christ. The goal of these friendships, conferences, and networks is therefore to reaffirm this central doctrine of the Christian faith and to encourage local churches to do the same.

This year’s conference finished up last week. Wish I could have attended, but the audio is already posted online. You should definitely check it out.