 He said later on in Matthew 16, upon this rock I will build my church. Now, what is this parable about? Well, it's the parable of the pearl of great price. Look, if you will, now in chapter 13, verse 45. Again, the kingdom of heaven is like unto a merchant man seeking goodly pearls, who, when he hath found one pearl of great price, went and sold all that he had and bought it.