Justice Brown and his wife, Cindy, have been married over thirty-three years. They have three children, Joshua, Caroline, and Emily, and a daughter-in-law, Jennifer. They also have a grandson, Caleb and are expecting a second grandchild in February.
Justice Brown is an active member of BridgePoint Bible Church where he served as an elder and as a Sunday school teacher for children, high school students, and adults. He coached soccer, basketball, baseball, and softball for over a dozen years for his three children. He was the president of the Houston chapter of the Christian Legal Society for a number of years. He currently serves as the vice chairman of the board for KSBJ radio station in Houston.
He served for two years as the chairperson of the Memorial High School Community Network, a coalition of parents, teachers, and administrators with a common objective–to foster a school and community environment that encourages teenagers to choose and follow a healthy, alcohol-free and drug-free lifestyle. He is also a former board member of Houston Habitat for Humanity; he served as its vice-president when it built one hundred affordable homes in one week and later as its president.
He has been involved in a number of pro bono cases including acting as lead counsel in a successful challenge to a school district policy that barred high school students from holding student-initiated and student-led Bible studies on campus after school. That case was the first in a series of cases defending the constitutionality of the Equal Access Act, which required federally-funded secondary schools to provide equal access to their facilities for all extracurricular student groups.