Key verse:

Ephesians 2:19, 22, “Consequently, you are no longer foreigners and strangers, but fellow citizens with God’s people and also members of his household, … And in him you too are being built together to become a dwelling in which God lives by his Spirit.”

Related verses:

Romans 12:5, "so we, being many, are one body in Christ, and individually members of one another."

1 Corinthians 12:27, "Now you are the body of Christ, and members individually."

Matthew 16:15-18, "He said to them, “But who do you say that I am?” Simon Peter answered and said, “You are the Christ, the Son of the living God.” Jesus answered and said to him, “Blessed are you, Simon Bar-Jonah, for flesh and blood has not revealed this to you, but My Father who is in heaven. And I also say to you that you are Peter, and on this rock I will build My church, and the gates of Hades shall not prevail against it."

Matthew 7:15, "Beware of false prophets, who come to you in sheep’s clothing, but inwardly they are ravenous wolves."

2 John 10:11, "If anyone comes to you and does not bring this doctrine, do not receive him into your house nor greet him."

1 John 4:1, "Beloved, do not believe every spirit, but test the spirits, whether they are of God; because many false prophets have gone out into the world."

2 Timothy 2:16-17, "shun profane and idle babblings, for they will increase to more ungodliness. And their message will spread like cancer."

Romans 16:17, "note those who cause divisions and offenses, contrary to the doctrine which you learned, and avoid them."

Ephesians 4:3-5, "endeavoring to keep the unity of the Spirit in the bond of peace. There is one body and one Spirit, just as you were called in one hope of your calling; one Lord, one faith, one baptism;"