Matthew 16:23

Mat. 16:23. "But he turned, and said unto Peter, Get thee behind Me, Satan; thou art an offence unto Me: for thou savourest not the things that be of God, but those that be of men." We are not to understand it that Christ here calls Peter, Satan. No; Christ speaks to Satan, that He said had a hand in the matter, and that influenced Peter thus to think and speak. He speaks to Peter's indwelling sin, which was as it were the Devil in Peter. It was not an instance in Christ's severity towards Peter that He thus speaks, but His love and grace that He would not impute what Peter says to himself, but to Satan. He graciously makes a distinction between His disciple Peter and his indwelling corruption, as Paul says, Romans 7:20, "It is no more I, but sin that dwelleth in me."

Mat. 16:26