Will the Apostle Peter be the doorkeeper in heaven, since Jesus said to him: "I will give unto you the keys of the kingdom of heaven"? (Matthew 16:19)
The "kingdom" in this scripture represents those who become true followers of Jesus. "Keys" are a symbol of power to open. Jesus gave the Apostle Peter the authority to first open (or preach) the message and work of the gospel to the Jews, and later to the Gentiles. [...]