Jesus Christ, not Peter, is the Rock/the rock and the chief corner stone:

Ephesians 2:19 -20 KJB
[19] Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;
[20] and are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;

Psalm 118:22 KJB
[22] The stone which the builders refused is become the head stone of the corner.

1 Peter 2:5 - 8 KJB
[5] ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ. [6] Wherefore also it is contained in the scripture, Behold, I lay in Sion a chief corner stone, elect, precious: and he that believeth on him shall not be confounded. [7] Unto you therefore which believe he is precious: but unto them which be disobedient, the stone which the builders disallowed, the same is made the head of the corner, [8] and a stone of stumbling, and a rock of offence, even to them which stumble at the word, being disobedient: whereunto also they were appointed.

Matthew 21:42 KJB
[42] Jesus saith unto them, Did ye never read in the scriptures, the stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvellous in our eyes?

Psalm 18:31 KJB
[31] For who is God save the LORD? or who is a rock save our God?

Psalm 94:22 KJB
But the LORD is my defence; and my God is the rock of my refuge.

Deuteronomy 32:3 - 4 KJB
Because I will publish the name of the LORD: ascribe ye greatness unto our God. He is the Rock, his work is perfect: For all his ways are judgment: a God of truth and without iniquity, just and right is he.

In conclusion the Scriptures clearly say that Jesus, not Peter, is the Rock/the rock and the chief corner stone.

Bonus: Jesus is also the foundation
1 Corinthians 3:11 KJB
[11] For other foundation can no man lay than that is laid, which is Jesus Christ.

ℭ𝔳𝔠𝔨𝔱𝔥𝔬𝔩𝔦𝔠𝔦𝔰𝔪 & ℭ𝔲𝔩𝔱𝔥𝔬𝔩𝔦𝔠𝔦𝔰𝔪