God doesn’t change His mind.

Many lessons we can learn from these two verses. Peter was rebuking Jesus! Peter’s immaturity was evident and made sense…kind of. He was a fisherman who had a powerful encounter with Jesus. The encounter didn’t forfeit Peter’s need to grow, mature, study, be taught, etc,… And we see where passion overrides his understanding. Jesus on the other hand wasn’t rebuking Peter he was rebuking Satan who was influencing Peter. Sadly we still have this today. The “student” rebuking the teacher. You know what happens next. When the teacher rebukes the “student” they leave! Gotta give it to Peter, he didn’t leave, and look where he ended up! I would give you some examples of what happens to those who leave when they are rebuked but I feel some of us reading this already know. It’s not too late, repent and get back on track.
Remember God doesn’t change His mind about someone He leads you to, you do.

Matthew 16: 22-23 NASB 20

And yet Peter took Him aside and began to rebuke Him, saying, “God forbid it, Lord! This shall never happen to You!” But He turned and said to Peter, “Get behind Me, Satan! You are a stumbling block to Me; for you are not setting your mind on God’s purposes, but men’s.”