The aim of true preaching

In preparation to preach, I picked up my brother's copy of The Supremacy of God in Preaching, and came across these wise words:

The Scottish reacher James Stewart put it like this: the aims of all genuine preaching are "to quicken the consience by the holiness of God, to feed the mind with the truth of God, to purge the imagination by the beauty of God, to open the heart to the love of God, to devote the will to the purpose of God." (Piper, John. "The Supremacy of God in Preaching." Grand Rapids, MI: Baker Books. 2004. p 23)

May God do all these things in and through me.