I agree with Jeff. I would also add that I have noticed in my reading about the Scottish Covenanters that many used to write down personal covenants that they made with God or testimonies that they wanted to share with others. This is evident, for example, in A Cloud of Witnesses by Rev. John H. Thomson. Granted, the circumstances of the time in which they lived sometimes made such documents necessary, as when they were on trial for their beliefs or writing their last will and testament from prison. But covenanting, that is, promising yourself to God, both as to what you believe and how you will live, in the form of an oath, whether in the context of church membership or between you and God alone, is a Biblical form of confessing one's faith. Sometimes it helps to write down what one believes. Even if this is done in a journal for your eyes only. But it is especially meaningful, I think, when it is done in an ecclesiastical setting. Affirming church standards is a very good place to start.