Okay, why do you think Jesus singled out Peter? Try to support your view with the Scriptures.
Luke 1:47
“and my spirit rejoices in God my Savior” - Mary
Oh, I love Mary.

Thanks for quoting her.
Why do I think Jesus singled out Peter? I was hoping you had an answer, but since you apparently don’t, I’ll do my best to answer that for you within the limited parameters you set:
First, in the New Testament, Peter is mentioned 155 times. The rest of the apostles–combined–are only mentioned 130 times.
If you will observe Matt. 10:2; Mark 1:36; 3:16; Luke 6:14-16; Acts 1:3; 2:37; 5:29, you will notice that he is listed first among the apostles. This is the inspired written word of God.
Matt. 17:20-27:
"When they came to Capernaum, the collectors of the temple tax approached Peter and said, “Doesn’t your teacher pay the temple tax?” “Yes,” he said. When he came into the house, before he had time to speak, Jesus asked him, “What is your opinion, Simon? From whom do the kings of the earth take tolls or census tax? From their subjects or from foreigners?”
When he said, “From foreigners,” Jesus said to him, “Then the subjects are exempt. But that we may not offend them, go to the sea, drop in a hook, and take the first fish that comes up. Open its mouth and you will find a coin worth twice the temple tax. Give that to them for me and for you.”
In this story, we see that the tax collector approached Peter about Jesus. And that Jesus paid for both himself and Peter.
There are numerous verses where Peter acts as the leader among the apostles; I’m sure you are well aware of these.
Note also John 21:15-17. As we both recognize Jesus as the Shepherd, it appears here that Jesus is entrusting his flock to Peter to lead in his absence. As Jesus has not yet returned, Peter has had successors who similarly lead the flock in Jesus’s absence.
I think its also important to note this Old Testament parallel:
Gospel of Matthew, chapter 16, verses 13 through 19:
“Now when Jesus came into the district of Caesarea Philippi, He asked His disciples, ‘Who do men say that the Son of Man is?’ And they said, ‘Some say John the Baptist, others say Elijah, others Jeremiah or one of the prophets’. He said to them, 'But who do you say that I am? Peter replied, ‘You are the Christ, the Son of the Living God. You are the Christ, the Son of the Living God.’ And Jesus answered 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 tell you, you are Peter and on this Rock , I will build my Church and the gates of Hades shall not prevail against it. I will give you the **keys of the kingdom of heaven **and
whatever you bind on earth will have been bound in heaven and whatever you loose on earth will have been loosed in heaven.’” And then He strictly charged the disciples to tell no one that He was the Christ."
And this: Isaiah 22: 20-23
"On that day I will summon my servant Eliakim, son of Hilkiah;
I will clothe him with your robe, and gird him with your sash, and give over to him your authority. He shall be a father to the inhabitants of Jerusalem, and to the house of Judah.
I will place the **key of the House of David **on his shoulder;
when he opens, no one shall shut, when he shuts, no one shall open.
I will fix him like a peg in a sure spot, to be a place of honor for his family"
There are no coincidences in Scripture, I’m sure you’d agree.
I would refer you to the following for a more exhaustive account:
scripturecatholic.com/primacy_of_peter.html
God bless,

Love is Patient