Jesus said, "It is written: 'Man shall not live on bread alone, but on every word that comes from the mouth of God.'" (Matthew 4:4 NIV)
George Mueller, the man of great faith in nineteenth-century England, shared his reason for spiritual power: “The first thing to be concerned about was not how much I might serve the Lord, but how I might get my soul into a happy state, and how my inner man might be nourished… I began therefore to meditate on the New Testament from the beginning, early in the morning. The first thing I did, after having asked in a few words the Lord’s blessing upon His precious Word, was to begin to meditate on the Word of God, searching out of it, not for the sake of public ministry of the Word, not for the sake of preaching on what I had meditated upon, but for obtaining for my own soul.”
You don’t get food for your soul by osmosis! You can hear others talk of it; but until you regularly take in the delicious Word of God, you’re undernourished.
-- Ray & Anne Ortlund in “Renewal: An Influencer Discussion Guide”