Perhaps you could read the entire passage before isolating a phrase and pretend to turn the entire meaning on it’s head:
Matthew 16:17-19:
And Jesus answered him, “Blessed are you, Simon Bar-Jona! For flesh and blood has not revealed this to you, but my Father who is in heaven. And I tell you, you are Peter, and upon this rock I will build my church, and the powers of death shall not prevail against it. I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”
By that quote the ’rock’ is .my father who is in heaven’ and the keys to the kingdom is Jesus and hid teachings.
Anything else would be quite twisted