Greg grew up in Houston, Texas. He attended Baylor University, where he earned a BA in History in 1987, and was named Phi Beta Kappa. Greg attended law school at the University of Texas School of Law, earning a Juris Doctorate in 1990. Greg practiced law in Houston with Funderburk & Funderburk, LLP, specializing in civil litigation, from 1990 to 2011 before experiencing a call to ministry. Greg and his wife, Kelly, joined South Main as members in April 1994. Greg joined the South Main staff in 2012. They have two sons, Hank and Charlie.