Acts 20:28-32 (NLT)

28 “So guard yourselves and God’s people. Feed and shepherd God’s flock—his church, purchased with his own blood—over which the Holy Spirit has appointed you as leaders. 29 I know that false teachers, like vicious wolves, will come in among you after I leave, not sparing the flock. 30 Even some men from your own group will rise up and distort the truth in order to draw a following. 31 Watch out! Remember the three years I was with you—my constant watch and care over you night and day, and my many tears for you. 32 And now I entrust you to God and the message of his grace that is able to build you up and give you an inheritance with all those he has set apart for himself.

Matthew 16:1-19 (NLT)

13 When Jesus came to the region of Caesarea Philippi, he asked his disciples, “Who do people say that the Son of Man is?” 14 “Well,” they replied, “some say John the Baptist, some say Elijah, and others say Jeremiah or one of the other prophets.” 15 Then he asked them, “But who do you say I am?” 16 Simon Peter answered, “You are the Messiah, the Son of the living God.” 17 Jesus replied, “You are blessed, Simon son of John, because my Father in heaven has revealed this to you. You did not learn this from any human being. 18 Now I say to you that you are Peter (which means ‘rock’), and upon this rock I will build my church, and all the powers of hell will not conquer it. 19 And I will give you the keys of the Kingdom of Heaven. Whatever you forbid on earth will be forbidden in heaven, and whatever you permit on earth will be permitted in heaven.