It is one of the hardest things for anyone to do, to say "I'm sorry". Yet, in saying we are sorry we release the power of healing into relationships. There are times in churches when the church should stop and say they are sorry. Kenneth Quick has a couple of great books, "Healing the Heart of Your Church", and "Body Aches" that deal with this subject.
For biblical understanding of saying we are sorry for past mistakes or weakness in a church we can look at the way people like Daniel. When Daniel was challenged in reading Jeremiah (Daniel 9), and realizing the 70 years of exile was soon to come to an end, he didn't rejoice. Instead Daniel remembered why the people of Israel had been exiled to begin with. He prayed for forgiveness of the past of his people.
We can only release God's power to move upon us, as His people, if we have sat at His feet and examined ourselves in His love, His Word, and His Will. I encourage you to take time to look at your own life. Look at the ministry history of your church. Give it all to Christ, and let Him free you to be the potential He has in mind for you.
Keep on the Journey with Christ today,