Types and AntiTypes
The bond that holds type and antitype together must be a bond of vital continuity in the progress of redemption. Where this is ignored, and in the place of this bond are put accidental resemblances, void of inherent spiritual significance, all sorts of absurdities will result, such as must bring the whole subject of typology into disrepute. Examples of this are : the scarlet cord of Rahab prefigures the blood of Christ; the four lepers at Samaria, the four Evangelists.
Geerhardus Vos, Biblical Theology: Old and New Testaments (Eugene, OR: Wipf & Stock Publishers, 2003), 146