As a case study...to whom or to what was Jesus referring with the word "petra" in this verse? To himself, or to Peter (or to Peter's confession)?
Can we look anywhere else in Scripture for support for or against either interpretation? Is there anywhere else in Scripture that is more clear, that could help us interpret this less clear (or at least, debated) passage?
The answer is yes:
- Isaiah 28:16 refers to Christ as "a stone, a tested stone, a precious cornerstone, of a sure foundation"
- Psalm 118:22 refers to Christ as "the stone that the builders rejected [which] has become the chief cornerstone"
- Isaiah 8:14 refers to Christ as "a stone of offense and a rock of stumbling to both houses of Israel"
- 1 Peter 2:4-8 (Peter himself!) refers to Christ as "a living stone rejected by men but in the sight of God chosen and precious" (obviously referring to Isaiah 28 Psalm 119
- Ephesians 2:20 refers to "Christ Jesus himself being the cornerstone"
- Acts 4:11 (Peter) quotes Psalm 118 referring to Christ
- Matthew 21:42-44 / Mark 12:10-11 / Luke 20:17-18 - Jesus quotes Psalm 118 referring to himself
- Romans 9:32-33 Paul quotes Isaiah 28:16 and 8:14 identifying Christ as the "stone of stumbling"
- 1 Cor. 13:11 says of Christ, "For no one can lay a foundation other than that which is laid, which is Jesus Christ"
- 1 Corinthians 10:4 - "and the Rock was Christ"
Letting Scripture interpret Scripture regarding this debated verse, it seems the evidence is overwhelming: Christ was referring to himself, not to Peter, with the word "petra." And I, for one, don't need anyone to give their stamp of approval on this interpretation--though it does provide me with a measure of assurance that so many others have interpreted it this way too.