In 1143 Changing Churches, Rev. Catania discusses this issue. There are many times that you should leave one church for another. However, you need to make sure your head is on straight and your heart is right. There is no perfect church out there. Many people change churches because of unforgiveness and an inability to walk in the love of God towards one another. You want God's guidance and blessing so you do change a church for a godly reason. For example, if your church teaches doctrines that contradicts what the Word of God says, that's a good reason. We need to love and forgive each other because there is no church with perfect people. .