Between Issac and Christ

Consider the sense in which the Bible is balanced between two sacrifices of children by the father: between Issac on the one hand and Christ on the other (between the Old and New Testaments, in other words). But the rule of three suggests there should be a third. In the first sacrifice, death is averted at the last minute; in the second death is rescinded after the fact; what's needful is a third sacrifice, to make plain the truth of existence, that death can neither be averted nor rescinded, but must be encountered fully, in itself, as itself. A third sacrifice in which the sacrificial victim actually dies.