Charles Spurgeon Commentary Luke 22:32

"but I made supplication for thee, that thy faith fail not; and do thou, when once thou hast turned again, establish thy brethren." — Luke 22:32 (ASV)

And when you are converted, –

"When you are restored," –

But I have prayed for you, that your faith fail not:

"I have made you, Simon, a special object of My prayer. All the brotherhood will be tried, but for you I have especially prayed, for you, who seem to be the strongest, are the weakest of them all, so I have prayed specially for you, that your faith may not fail."