Matthew 16:22

18 And I tell you that you are Peter, and on this rock I will build My church, and the gates of Hades will not prevail against it.

19 I will give you the keys of the kingdom of heaven. Whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.”

20 Then He admonished the disciples not to tell anyone that He was the Christ.

21 From that time on Jesus began to show His disciples that He must go to Jerusalem and suffer many things at the hands of the elders, chief priests, and scribes, and that He must be killed and on the third day be raised to life.

22 Peter took Him aside and began to rebuke Him. “Far be it from You, Lord!” he said. “This shall never happen to You!”

23 But Jesus turned and said to Peter, “Get behind Me, Satan! You are a stumbling block to Me. For you do not have in mind the things of God, but the things of men.”

24 Then Jesus told His disciples, “If anyone wants to come after Me, he must deny himself and take up his cross and follow Me.

25 For whoever wants to save his life will lose it, but whoever loses his life for My sake will find it.

26 What will it profit a man if he gains the whole world, yet forfeits his soul? Or what can a man give in exchange for his soul?

Read all of Matthew 16