Famed pastor and educator A. T. Pierson (1837–1911) lamented his own human inadequacies in communicating to his congregation the depth and levels of the “unsearchable riches of Christ:”
“Unsearchable” literally means riches that can never be [fully] explored. You can form no estimate of them, and never get to the end of your investigation. There is a boundless continent, a world, a universe of riches that still lies before you, when you have carried your search to the limits of possibility.I sink back exhausted, in the vain attempt to set before [my] congregation the greatest mystery of grace that I ever grappled with. I cannot remember, in thirty years of Gospel preaching, ever to have been confronted with a theme that more baffled every outreach of thought and every possibility of utterance than the theme that I have now attempted in the name of God to present.