Welcome to the official Heart of the Bay Christian Center App! The Heart of the Bay App makes it easy to: - Listen to the latest messages from Pastors Mark and Brenda Thomas. - Stay up to date on the latest events. - Access mobile giving. - Find out more about the church. - And much more! Heart of the Bay Christian Center is lead by Pastors Mark and Brenda Thomas. Our worship experiences take place weekly in Hayward, CA.