But WAIT!!!
The 'foundational' rock the CHURCH is built on is PETER!
Rome SAYS so!
Peter himself even says so and yet the Catholics STILL don't believe him.
1 Peter 2:4-8 4 As you come to him, a living stone rejected by men but in the sight of God chosen and precious, 5 you yourselves like living stones are being built up as a spiritual house, to be a holy priesthood, to offer spiritual sacrifices acceptable to God through Jesus Christ. 6 For it stands in Scripture: “Behold, I am laying in Zion a stone, a cornerstone chosen and precious, and whoever believes in him will not be put to shame.” 7 So the honor is for you who believe, but for those who do not believe, “The stone that the builders rejected has become the cornerstone,” 8 and “A stone of stumbling, and a rock of offense.” They stumble because they disobey the word, as they were destined to do.