The most valuable thing the Psalms do for me is to express that same delight in God which made David dance. I am not saying that this is so pure or profound a thing as the love of God reached by the greatest Christian saints and mystics. But I am not comparing it with that, I am comparing it with the merely dutiful ‘church-going’ and laborious ‘saying our prayers’ to which most of us are, thank God not always, but often, reduced. Against that it stands out as something astonishingly robust, virile, and spontaneous; something we may regard with an innocent envy and may hope to be infected by as we read.
If you come to worship for any reason other that the joy and pleasure and satisfaction that are to be found in God, you dishonour Him. To put it in other words, worship is first and foremost a feasting on all that God is for us in Jesus. This is because God is most glorified in you when you are most satisfied in Him. Or again, you are His pleasure when He is your treasure. Which is to say that God’s greatest delight is your delight in Him.