The heart of man is desperately wicked and who can save it? Only God can. When God gives us a new heart everything about us should change. Our behavior, our speech, our attitudes, the list is endless. Why does everything change? Because out of our heart flows the issues of life. If we want to lead a life that is successful and pleasing to God then we must deal with the issues of our heart. When we do that we begin to walk in the peace, hope, and love that He said we could.