The cross shows us a different way of measuring success. Ours is to plant the seeds. God sees to the fruits of our labors. And if at times our efforts and works seem to fail and not produce fruit, we need to remember that we are followers of Jesus Christ and his life, humanly speaking, ended in failure, the failure of the cross.This shouldn't be any surprise, since others have said the same thing.
Roman Catholic expressions of this:
"It is love and loyalty which persist even where humanly speaking there seems to be no reason for it — just as the cross of Jesus was humanly speaking hopeless, but brought salvation and goodness." A New Catechism: Catholic Faith for Adults, with Supplement
"Humanly speaking, a failure: a colossal, blatant failure. Yet when all seemed to be lost, all was in fact saved. " Federico Suarez
Non-RC expressions of this:
"5. He was rejected and despised by the people among whom He labored. "He came to His own, and His own received Him not." His work was, humanly speaking, a complete failure, and when He left the world He had but a handful of followers who had remained true to His teachings and person." Albert Simpson
"With all reverence, let me say to you, humanly speaking, the day the Master died on the Cross it seemed a colossal failure." D. L. Ferris
"That beautiful Iife promised so much, but the Cross shows how those promises, humanly speaking, ended in failure. The nation He came to teach rejected Him; the people He came to save crucified Him; a few Disciples only remained faithful to Him; and yet out of that " failure" came the greatest success the world has ever known, the success which has regenerated mankind!" Alfred Mortimer
"Humanly speaking, his work had failed. " Warren W. Wiersbe
"What enabled the disciples of Jesus to understand this enigmatic "message of the cross"? At first sight, we see in the cross the sign of a failure, humanly speaking. " Taize
There are good reasons to be opposed to the papacy, but this isn't one of them.