Listen to and read sermons from godly men. The sermons and commentaries of John Calvin, Jonathan Edwards, Charles Spurgeon, J. C. Ryle, Martyn Lloyd-Jones, and other giants of the faith are available in print. Read the biographies of these and other godly men and women. With a few exceptions, avoid most of the modern Christian best sellers, and spend your time reading the works that have stood the test of time. These men walked with God, and they will feed your soul.