Faith means that I believe on the Lord Jesus Christ absolutely. Ah, we all have to learn this lesson. Even Paul had to pass this way. He had a thorn in the flesh, and he could not understand it. It seemed all wrong to him. He wanted to preach the Gospel, but the thorn was a hindrance to him. Three times he besought the Lord to remove it, but this was the answer he got: “My grace is sufficient for thee.” “I am not taking out the thorn,” said the Lord in effect, “but I will do something infinitely bigger. I will bless you with the thorn in your side. I assure you that even with the thorn I can do wonders through you.” “Quite right,” says Paul, “and I see that when I am weak, then I am strong, and I care about nothing except that I be right with You.” The place that God would have us come to is the one in which we can say, “All things work together for good to them that love God” (Romans 8:28). “All things”—it doesn’t matter what. “I have learned, in whatsoever state I am, therewith to be content” (Philippians 4:11).
– Martyn Lloyd-Jones and Robert Backhouse, Walking with God Day by Day: 365 Daily Devotional Selections, (Wheaton, IL: Crossway, 2013).