John Onwuchekwa is the lead pastor of Cornerstone Church, a church in one of Atlanta's oldest inner-city neighborhoods, and he currently serves as a council associate for the Gospel Coalition. John frequently speaks at colleges, conferences, and churches across the country and internationally. He has spoken at Bethlehem College and Seminary Conference (formerly Desiring God Pastors Conference), the Southern Baptist Convention Pastors Conference, Together for the Gospel (T4G), 9 Marks Pastors Conference, as well as several Gospel Coalition and Reach Records events. John holds a master's in Christian Education from Dallas Theological Seminary, and he has been married for ten years and are parents to their beloved baby girl.

John's latest project, Portrait Coffee, is a new coffee shop established to empower and equip Atlanta natives and residents with genuine career and life opportunities in the world of coffee. The mission of Portrait is to reframe the opportunities within the coffee industry to include black-owned businesses. They have been featured on Good Morning America and collaborated with Folgers