Prayer for Peter
"Simon, Simon, behold, Satan demanded to have you, that he might sift you like wheat, but I have prayed for you that your faith may not fail; and when you have turned again, strengthen your brethren." Luke 22:31-32
These two verses are unique to Luke. Why Matthew and Mark omitted these verses is not known.
According to Darrell Bock, the double direct use of Simon indicates the seriousness of the situation. Therefore the prayer of Jesus is for priestly intercession for Peter and all the disciples. This intercessory prayer enables Peter to be involved in the ministry after the resurrection. Luke tells us that Peter has been given the responsibility after his temporary failing to strengthen the faith of the brethren.