Jesus told His apostles, “For it is not ye that speak, but the Spirit of your Father which speaketh in you” (Matthew 10:20). So the above words of Peter and Paul are the words of the Holy Ghost Himself.
“See, saith he, that thou make all things according to the pattern” (Hebrews 8:5). We find the early church pattern in the Book of Acts.
Jesus told Peter, “And I will give unto thee the keys of the kingdom of heaven” (Matthew 16:19). Peter first used these keys in Acts. 2:38. They were the right keys, for the door opened and three thousand entered the kingdom.
“Ye should earnestly contend for the faith which was once delivered unto the saints” (Jude 3).
“Ye…are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone” (Eph. 2:19&20).
Speaking of the apostles, Jesus said, “Neither pray I for these alone, but for them also which shall believe on me through their word” (John 17:20).
Paul said, “Though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed” (Galatians 1:8). He could say this because he did not receive the revelation of the gospel from humans, but from the Lord (Galatians 1:11&12).