God keeps writing a commentary on His Word in the volume of our own experience. That is, insofar as we put that volume into His hands, and do not think to fill it with our own scribble. We are not to undervalue or neglect this commentary, but to use it as John Newton did, when he wrote,
His love in times past forbids me to think
He'll leave me at last in trouble to sink;
Each sweet Ebenezer I have in review
Confirms His good pleasure to help me quite through.
Every record of love bears the great signature, "I am the Lord, I change not"; "Jesus Christ, the same yesterday, and today, and forever." Every "hitherto" of grace and help is a "henceforth" of more grace and more help. Every experience of the realities of faith widens the horizon of the possibilities of faith. Every realized promise is the steppingstone to one yet unrealized.
Hitherto the Lord hath helped us, guiding all the way;
Henceforth let us trust Him fully, trust Him all the day.
Hitherto the Lord hath loved us, caring for His own;
Henceforth let us love Him better, live for Him alone.