Thou believest that there is one God; thou doest well: the devils also believe, and tremble.

Matthew 7:15-27:

"Beware of the false prophets, who come to you in sheep's clothing, but inwardly are ravenous wolves. You will know them by their fruits. Grapes are not gathered from thorn bushes nor figs from thistles, are they? So every good tree bears good fruit, but the bad tree bears bad fruit. A good tree cannot produce bad fruit, nor can a bad tree produce good fruit.

"Every tree that does not bear good fruit is cut down and thrown into the fire. So then, you will know them by their fruits. Not everyone who says to Me, 'Lord, Lord,' will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.

"Many will say to Me on that day, 'Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?' And then I will declare to them, 'I never knew you; DEPART FROM ME, YOU WHO PRACTICE LAWLESSNESS.'

"Therefore everyone who hears these words of Mine and acts on them, may be compared to a wise man who built his house on the rock. And the rain fell, and the floods came, and the winds blew and slammed against that house; and yet it did not fall, for it had been founded on the rock.

"Everyone who hears these words of Mine and does not act on them, will be like a foolish man who built his house on the sand. The rain fell, and the floods came, and the winds blew and slammed against that house; and it fell--and great was its fall.

Matthew 16:13-20:

Now when Jesus came into the district of Caesarea Philippi, He was asking His disciples, "Who do people say that the Son of Man is?" And they said, "Some say John the Baptist; and others, Elijah; but still others, Jeremiah, or one of the prophets."

He said to them, "But who do you say that I am?"

Simon Peter answered, "You are the Christ, the Son of the living God."

And Jesus said to him, "Blessed are you, Simon Bar-Jona, because flesh and blood did not reveal this to you, but My Father who is in heaven.

"I also say to you that you are Peter, the rock, and upon this rock I will build My church; and the gates of Hades will not overpower it. I will give you the keys of the kingdom of heaven; and whatever you bind on earth shall have been bound in heaven, and whatever you loose on earth shall have been loosed in heaven."