There’s no mention of a denomination called the Roman Catholic Church in the following passages of Scripture that you referred to;
8 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.” Matthew 16:18-19
15 So when they had eaten breakfast, Jesus said to Simon Peter, “Simon, son of Jonah,[a] do you love Me more than these?”
He said to Him, “Yes, Lord; You know that I love You.”
He said to him, “Feed My lambs.”
16 He said to him again a second time, “Simon, son of Jonah,** do you love Me?”
He said to Him, “Yes, Lord; You know that I love You.”
He said to him, “Tend My sheep.”
17 He said to him the third time, “Simon, son of Jonah,[c] do you love Me?” Peter was grieved because He said to him the third time, “Do you love Me?”
And he said to Him, “Lord, You know all things; You know that I love You.”
Jesus said to him, “Feed My sheep. 18 Most assuredly, I say to you, when you were younger, you girded yourself and walked where you wished; but when you are old, you will stretch out your hands, and another will gird you and carry you where you do not wish.” 19 This He spoke, signifying by what death he would glorify God. And when He had spoken this, He said to him, “Follow Me.” John 21:15-19**
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What is mentioned is that the Church of Jesus Christ had Peter at its Head.
Which Church has
Peter’s lawful successor at its Head, today?
Easy one - The Catholic Church!!