Hearing and reading the word of God are all good but they are not complete.
Our bodies are not supported by merely taking food into the mouth, but the process which really supplies the muscle, and the nerve, and the sinew, and the bone, is the process of digestion. It is by digestion that the outward food becomes assimilated with the inner life.
Our souls are not nourished merely by listening awhile to this, and then to that, and then to the other part of divine truth. Hearing, reading, marking, and learning, all require inwardly digesting to complete their usefulness, and the inward digesting of the truth lies for the most part in meditating upon it.
Why is it that some Christians, although they hear many sermons, make but slow advances in the divine life? Because they neglect their [prayer] closets, and do not thoughtfully meditate on God’s Word. They love the wheat, but they do not grind it; they would have the corn, but they will not go forth into the fields to gather it; the fruit hangs upon the tree, but they will not pluck it; the water flows at their feet, but they will not stoop to drink it.
From such folly deliver us, O Lord, and be this our resolve this morning, “I will meditate in Thy precepts.”
Excerpted from Charles H. Spurgeon’s Morning and Evening: Daily Bible Readings