The infinite reservoir of future grace is flowing back through the present into the ever-growing pool of past grace. The inexhaustible reservoir is invisible except through the promises. But the ever-enlarging pool of past grace is visible; and God means for the certainty and beauty and depth to strengthen our faith in future grace.
John PiperThe ultimate difference between God's wisdom and man's wisdom is how they relate to the glory of God's grace in Christ crucified. God's wisdom makes the glory of God's grace our supreme treasure. But man's wisdom delights in seeing himself as resourceful, self-sufficient, self determining, and not utterly dependent on God's free grace.
John PiperWhere the Bible is esteemed as the inspired and inerrant Word of God, preaching can flourish. But where the Bible is treated merely as a record of valuable religious insight, preaching dies.
John Piper