With those keys, Peter unlocked the kingdom for us all, when he said, “Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost” – Acts 2:38.
Then …, he left the door wide open for everyone to enter into the promise for themselves. “For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call. – Acts 2:39