Simplify the following text for a Grade 8 native English-speaking person.
Original: John Charles Hagee ( born April 12 , 1940 ) is the founder and senior pastor of Cornerstone Church in San Antonio , Texas , a church with more than 19,000 members . John Hagee is CEO at his non-profit corporation , Global Evangelism Television ( GETV ) .
Simplified: Matthew Hagee , John 's son , is the executive pastor of Cornerstone Church .