Blaise Pascal (1623-1662) was a mathematician, physicist, and philosopher who reflects here upon his conversion to Christianity after hearing a sermon while visiting his sister.
If I had but seen a miracle, say some men, should I not be converted? They would not talk in this matter, if they knew what conversion really meant. They imagine there is nothing in it but merely to acknowledge there is a God; and that to worship him consists only in uttering certain verbal addresses, but little different from those which the heathens made to their idols. True conversion consists in deep abasement of ourselves before that sovereign Being whom we have so often provoked, and who every moment might justly destroy us; in acknowledging that we can do nothing without his aid, and that we have merited nothing of him but his displeasure. It consists in knowing that there is such an invincible opposition between God and ourselves, that without a Mediator there could not be any communion between us.
Wow. Now that is telling it like it is! Conversion is more than a mental or cerebral exercise, it has to come from somewhere deeper and from our longing to see God. Psalm 119:34 (ESV):
Give me understanding, that I may keep your law and observe it with my whole heart.
If we were given understanding, it wouldn’t be enough. Our hearts must respond do God’s call. In Pensées Pascal wrote, “The heart has its reason that reason knows not of.” Aren’t mathematicians great!?