In Mark 8:31, Jesus harshly rebukes Peter and calls him “satan,” for attempting to change His mind about His passion and crucifixion. In the night of the Last Supper, Jesus told His Apostles that He would be betrayed and that none of them would stand by Him in His last hour. Peter told Jesus he would stand by Him and defend Him. Jesus, knowing Peter well, said that before the rooster crows today you will have denied me three times. (Matthew 26:34) And indeed, Peter, in the night of Jesus’ trial, denied Him three times
https://stlukemission.org/sermons/2017/5/5/restoration