"My soul longeth, yea, even fainteth for the courts of the Lord: my heart and my flesh crieth out for the living God" (Psalm 84:2)
In our private prayers and in our public services we are forever asking God to do things that He either has already done or cannot do because of our unbelief. We plead for Him to speak when He has already spoken and is at that very moment speaking. We ask Him to come when He is already present and waiting for us to recognize Him. We beg the Holy Spirit to fill us while all the time we are preventing Him by our doubts.
Of course the Christian can hope for no manifestation of God while he lives in a state of disobedience. Let a man refuse to obey God on some clear point, let him set his will stubbornly to resist any commandment of Christ, and the rest of his religious activities will be wasted. "To obey is better than sacrifice" (1 Samuel 15:22). I need only add that all this tragic waste is unnecessary. The believing Christian will relish every moment in church and will profit by it. The instructed, obedient Christian will yield to God as the clay to the potter, and the result will be not waste but glory everlasting.
Speak, Thy servant heareth,
Be not silent, Lord;
Waits my soul upon Thee
For the quickening word.
~A. W. Tozer~