MacArthur on the Greatest Act of Love

From John MacArthur's sermon on Matthew 22:34-40:

Ripley’s Believe it or Not says that the longest love letter ever written was written in 1875 and it was written from a Parisian painter by the name of Marcel de Leclure, addressed to Magdalena de Villeray and he was so in love with her that he wanted to write, ["I love you"] in French a thousand times for every year, so it was 1875, so he wrote ["I love you"] one million eight hundred and seventy five thousand times. And not being a fool he hired a secretary to do it. But, he did not want to diminish his expression of his love, so he did not tell her to write it one million eight hundred and seventy five thousand times, but he rather dictated each one to her separately. So he said it one million eight hundred and seventy thousand times and she wrote it one million eight hundred and seventy five thousand times. And Ripley says, ‘Never was love made manifest by as great an expenditure of time and effort.’ It’s a nice thought, but that's not true. Never was love manifested by such a great expenditure of time and effort. Listen, in the first place God loved us in a way that couldn't be measured when He gave Christ, right? And secondly when we love God back with all our heart, soul, mind, and strength we love God more than that guy loved that lady and we express it not by writing something over a million times, but by a life of obedience.”