Preaching is by its very nature the declaration of a message that is designed to be heard. And since faith comes about through hearing the word of God, there is a fundamental correspondence between the act of preaching and the creation of faith. Paul is not simply suggesting that preaching is the best way of achieving the intended result of faith (as though his concern were merely pragmatic), but that preaching is the natural, appropriate and God-ordained means of producing faith, by its nature having a fundamental correspondence to the character of faith.
Gospel means
