Sifting

Simon, Simon (when a name is repeated in the Bible, it signifies deep emotion), behold (Stop. Listen to Me), Satan has demanded permission (Satan cannot wait to go after those who follow Christ-vss. 28-30) to sift you like wheat (Sifting is a process in the harvesting of wheat. It is the last task in the process. It signifies the end of the search for the true, valuable goods. Satan appears to have the discernment to search out our hearts as well and reveal what is there, by implementing external conditions. When I have sifted wheat, I had to work hours and hours to get the kernals. It is a long process, unlike reaping.); but I have prayed for you (John 17; His prayer), that your faith may not fail (my faith begins in Christ and grows through my choices); and you, when once you have turned again (We can return, just as Peter returned after his denial of Jesus), strengthen you brothers (It is in the continual contact with the love and grace of God through forgiveness and the cleaning of our feet, that gives us courage to help one another. Through our depravity and forgiveness, we see our true diginity).
-Luke 22:31-32 (my commentary)