You're going back to the anti-Catholic tactic of throwing out more and more accusations as answers are presented to you. As Bishop Sheen said:
"There are not a hundred people in America who hate the Catholic Church. There are millions of people who hate what they wrongly believe to be the Catholic Church." It is folly to believe that because something is in the Bible one time that it somehow not important.
2 Timothy 3:16 All scripture is inspired by God and[
a] profitable for teaching, for reproof, for correction, and for training in righteousness,[
b] RSVCE
To kill two birds with one stone: John 8:6-8 This they said to test him, that they might have some charge to bring against him. Jesus bent down and wrote with his finger on the ground. And as they continued to ask him, he stood up and said to them, “Let him who is without sin among you be the first to throw a stone at her.” And once more he bent down and wrote with his finger on the ground. RSVCE
This important passage is also found just once, but I don't believe any of us here want our names written in the earth as per Jeremiah 17:13. Of course, Peter's name is mentioned more times in the Bible than that of any other Apostle. In fact, only the name of Jesus is mentioned more times in the New Testament than Peter's name. John waited at the tomb so that Peter could enter first. And only Peter was given the name "Rock," a name used a number of times in the Bible to describe God, and given that name at the time when He was given his new position. It is Peter that Jesus wanted to feed His sheep.