"What comes into our minds when we think about God is the most important thing about us. Worship is pure or base as the worshiper entertains high or low thoughts of God.
For this reason the gravest question before the Church is always God Himself, and the most portentous fact about any man is not what he at a given time may say or do, but what he in his deep heart conceives God to be like. We tend by a secret law of the soul to move toward our mental image of God. This is true not only of the individual Christian, but of the company of Christians that composes the Church. Always the most revealing thing about the Church is her idea of God, just as her most significant message is what she says about Him or leaves unsaid, for her silence is often more eloquent than her speech."
A.W. Tozer, The Knowledge of the Holy (Chapter 1)
On one level it all comes down to this - How do we view God - because that perception will influence everything in our life and worship.
And yet, I can't help but think that the other perception is more important still - How does God view us?
"Well done good and faithful servant" or "I never knew you"?