Post #135 already went into that ... let’s just quote those verses here ...
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Matthew 16
13 When Jesus came into the region of Caesarea Philippi, He asked His disciples, saying, “Who do men say that I, the Son of Man, am?”
14 So they said, “Some say John the Baptist, some Elijah, and others Jeremiah or one of the prophets.”
15 He said to them, “But who do you say that I am?”
16 Simon Peter answered and said, “You are the Christ, the Son of the living God.”
17 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.
18 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.
19 And I will give you the keys of the kingdom of heaven, and whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.”
20 Then He commanded His disciples that they should tell no one that He was Jesus the Christ.
21 From that time Jesus began to show to His disciples that He must go to Jerusalem, and suffer many things from the elders and chief priests and scribes, and be killed, and be raised the third day.
22 Then Peter took Him aside and began to rebuke Him, saying, “Far be it from You, Lord; this shall not happen to You!”
23 But He turned and said to Peter, “Get behind Me, Satan! You are an offense to Me, for you are not mindful of the things of God, but the things of men.”
24 Then Jesus said to His disciples, “If anyone desires to come after Me, let him deny himself, and take up his cross, and follow Me.
25 For whoever desires to save his life will lose it, but whoever loses his life for My sake will find it.
26 For what profit is it to a man if he gains the whole world, and loses his own soul? Or what will a man give in exchange for his soul?
27 For the Son of Man will come in the glory of His Father with His angels, and then He will reward each according to his works.
28 Assuredly, I say to you, there are some standing here who shall not taste death till they see the Son of Man coming in His kingdom.”
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The following comment on this verse from The Bible Knowledge Commentary sums up the issue:
16:17-20. Peters words brought a word of commendation from the Lord. Peter was blessed because he had come to a correct conclusion about the person of Christ and because great blessing would be brought into his life. The Lord added, however, this was not a conclusion Peter had determined by his own or others ability. God, the Father in heaven, had revealed it to him. Peter was living up to his name (it means rock) for he was demonstrating himself to be a rock. When the Lord and Peter first met, Jesus had said Simon would be named Cephas (Aram. for rock) or Peter (Gr. for rock; John 1:41-42).
But his declaration about Messiahs person led to a declaration of Messiahs program. Peter (Petros, masc.) was strong like a rock, but Jesus added that on this rock (petra, fem.) He would build His church. Because of this change in Greek words, many conservative scholars believe that Jesus is now building His church on Himself. Others hold that the church is built on Peter and the other apostles as the buildings foundation stones (Eph. 2:20; Rev. 21:14). Still other scholars say that the church is built on Peters testimony. It seems best to understand that Jesus was praising Peter for his accurate statement about Him, and was introducing His work of building the church on Himself (1 Cor. 3:11).
https://bible.org/question/what-did-jesus-mean-when-he-said-upon-rock-i-will-build-my-church;;
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NOW ... if you don’t want to accept that, then it’s on you, and not me. You can take it from there.
In any case, for me, I’m in the ECCLESIA (the assembly of the saved ones) on the basis of the fact that Jesus is the Messiah of Israel and that I have accepted him as my personal savior, according to the Gospel and per the Scriptures.
There is no "personal savior" in the scriptures; the scriptural reference is to call God "my Savior" or "Savior of the world." The name change for Cephas was significant, because as with Abram and wit Jacob, the LORD built upon Cephas, just as Jesus said that he would, for those who have ears to hear and are not blinded.