The glad tidings of Genesis 3:15—namely, that God will give Eve an offspring who will crush the serpent's head—creates faith. Yet it also initiates a war between the seed of the woman and the seed of the serpent that will become the story behind all of the stories in the Bible. Upon giving birth to her firstborn son, Eve exclaimed, "Behold, I have brought forth [the] man!" Yet he was not the promised Messiah, but the first antichrist. Already in Genesis 4, the serpent seeks to destroy the seed of the woman who will crush his head, as Cain slays Abel. Yet God replaces Abel with Seth. Each time the baton falls from the hands of one bearer of the promise, God raises up another runner to pass it to the next. This is the ultimate reason why every mother in Israel was so concerned about having children. Who will continue this relay race? God promised a Savior of the world to Abraham and Sarah through Sarah's womb, yet she was nearly a century old. This royal couple had to believe God's promise in spite of everything that they saw in their circumstances or experienced in their own life. They were not holier than others; in fact, they both questioned God's promise even up to the moment when Sarah gave birth to Isaac. Yet they were blessed and in their seed all the families of the earth would be blessed. By the way, when Paul speaks of Adam and Eve in 1 Timothy 2:15 and adds that enigmatic line about women being "saved through childbirth," I believe that this is what he had in mind. Many evangelical commentators treat this as a more generic ethical encouragement to motherly domesticity, but that seems to me to be another form of salvation by works. Israel's mothers were not trying to save themselves by their act of childbearing; rather, they were longing to give birth to the long-awaited Messiah.
God's promise is tied to history—so tied to it, in fact, that the Messiah can only come through a single line. The scarlet cord of redemption was threaded through the smallest eye of the thinnest needle. At key junctures, it seemed as if the serpent had triumphed. There was young Joash, the only royal survivor of the wicked Queen Athaliah's purge of the House of David. Besides direct assisination, the serpent also attempted to lure Israel into apostasy. Eventually, Israel was sent into exile for having so thoroughly violated the covenant. Yet even in Babylon, mothers of Israel continued to hope in the promise that one day, one of them—or one of their daughters—might be the mother of the Messiah.
And now, the great Caesar Augustus reigns over most of the civilized world, including Palestine, under Quirinius, Governor of Syria. Herod is the puppet-king of the Jews, who fancies himself the messianic heir. Not being a lineal descendent of David, neither his pedigree nor his rebuilding of the Temple impress the Pharisees with his credentials as the messianic heir. From the perspective of the Gospels, particularly in his massacre of Bethlehem's infants, he is just another antichrist.
It is into this world of competing kings and their kingdoms that we discover an obscure girl in an equally obscure part of the world, who receives the most extraordinary announcement and becomes the first evangelist of the new covenant.
A Royal Hope
The story of Zacharias and Elizabeth and also of Mary is a redrawing of the Elkanah and Hannah story of 1 Sam. 1:1-2:11. Like Sarah and Rebekah, Hannah is barren. On the steps of the Tabernacle of God's Presence, Hannah offers a desperate prayer: "O LORD of hosts, if you will indeed look on the affliction of your maidservant and remember me, and not forget your maidservant, but will give your maidservant a male child, then I will give him to the LORD all the days of his life, and no razor shall come upon his head" (v.11). In other words, she would give him to the service of the Nazarite order. Eli the priest told Hannah that her prayer would be answered, offering the familiar benediction, "Go in peace." Nine months later, she who was barren gave birth to Samuel, "Heard By God." Upon presenting her son to Eli, Hannah composed a song to the Lord: