Day 3 of 7
The Arrow in the Story
Why the Bible is not a circle of wisdom but a promise flying toward its Yes
Scripture Readings
Today's Scripture
Genesis 3:15 — "I will put enmity between you and the woman, and between your offspring and her offspring; he shall bruise your head, and you shall bruise his heel."
Isaiah 9:6 — "For to us a child is born, to us a son is given; and the government shall be upon his shoulder, and his name shall be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace."
2 Corinthians 1:20 — "For all the promises of God find their Yes in him. That is why it is through him that we utter our Amen to God for his glory."
The Big Idea
Many ancient religions pictured time as a wheel — everything cycles, nothing arrives. The Bible is not a wheel. It is an arrow. God makes a promise in the garden, and that promise flies through the centuries, gathering detail as it goes, until it strikes its target in Jesus. To read the Bible well is to feel the forward pull on every page.
Reflection
A wheel or an arrow?
Picture two shapes. A wheel turns and turns: seasons, dynasties, lives — round and round, going nowhere in particular. Much ancient thought, and plenty of modern despair, sees history that way. "There is nothing new under the sun."
Now picture an arrow leaving a bow. It has a launch point, a flight, and a target. That is the Bible's shape. Things happen in Scripture that have never happened before and will never need to happen again. Promises are made and then — sometimes centuries later — kept. History is going somewhere because Someone is taking it there.
You know the difference between these two shapes from your own life. A wheel-shaped week is the treadmill feeling: alarm, commute, inbox, sleep, repeat — motion without destination. An arrow-shaped week is the engaged couple counting down to a wedding: the same days, but every one of them means something, because they are headed toward a promise being kept. The Bible insists that all of history — and your place in it — is the second kind of time. Jonathan Edwards preached a whole sermon series tracing this single flight:
"The Work of Redemption is a work that God carries on from the fall of man to the end of the world." — Jonathan Edwards, A History of the Work of Redemption
One work. Carried on. From the fall to the end. Graeme Goldsworthy, the Australian scholar who taught a generation this way of reading, calls the discipline of tracing that one work "biblical theology" — and defines it without a wasted word:
"Biblical theology is nothing more nor less than allowing the Bible to speak as a whole: as the one word of the one God about the one way of salvation." — Graeme Goldsworthy, According to Plan
One word. One God. One way of salvation. That is what "biblical theology" means when teachers use the term — not theology that happens to quote the Bible, but the discipline of reading the Bible along its own arrow, from promise to fulfillment. Today we watch the arrow fly. Five stops, then the target.
The promise leaves the bow
Stop one: the garden, the very day of the ruin. Before God speaks a single word of judgment over Adam, he speaks doom over the serpent — and hides a promise inside it. Genesis 3:15 — "I will put enmity between you and the woman, and between your offspring and her offspring; he shall bruise your head, and you shall bruise his heel." Christians have long called this verse the protoevangelium — a Latin label that simply means "the first gospel." Someday, someone born of a woman will crush the serpent's head — and be wounded doing it. A victor, and a wounded victor. The whole Bible is the biography of that promised someone.
Stop two: one family. Genesis 12:1-3 — "Go from your country... And I will make of you a great nation, and I will bless you and make your name great... and in you all the families of the earth shall be blessed." The arrow narrows its flight path: the serpent-crusher will come through Abraham's line. Notice God's strange math throughout this story — he aims at all the families of the earth by choosing one family. The promise is precise, never private. And notice whom he chooses: an elderly couple with no children. God loves to launch his biggest promises from impossible runways, so that when the promise lands, no one can credit anything but grace.
Stop three: one throne. A thousand years on, God speaks to King David: 2 Samuel 7:12-13, 16 — "I will raise up your offspring after you... and I will establish the throne of his kingdom forever... And your house and your kingdom shall be made sure forever before me." Now the someone is royal. A son of David with a forever throne. Every later cry of "Son of David!" in the Gospels is this promise being recognized on sight.
Stop four: a name and a government. The prophets sharpen the picture almost unbearably. Isaiah 9:6-7 — "For to us a child is born... and his name shall be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace. Of the increase of his government and of peace there will be no end, on the throne of David." Read that slowly: a child who is Mighty God. The promised someone will be human enough to be born and divine enough to carry a name no mere king could survive. Seven centuries before Bethlehem, the arrow is glowing.
Stop five: a new covenant. Even Israel's failure cannot ground the arrow. Jeremiah 31:31 — "Behold, the days are coming, declares the Lord, when I will make a new covenant with the house of Israel and the house of Judah." A covenant is a binding promise that creates a relationship — and God promises a new one, written on hearts, built on forgiveness. The Old Testament closes leaning forward on its toes.
The arrow strikes
Four silent centuries. No prophet, no fresh word — just a people holding old promises the way a family holds a deed to land they have never been allowed to occupy. Then a teenage girl in Nazareth sings, and her song is all arrow: Luke 1:54-55 — "He has helped his servant Israel, in remembrance of his mercy, as he spoke to our fathers, to Abraham and to his offspring forever." Mary understands her pregnancy as a kept promise — the Genesis 12 promise, two thousand years old, landing in her own body.
Paul gives the moment its timestamp: Galatians 4:4-5 — "But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons." The fullness of time — not a random moment but a ripened one, like fruit finally heavy enough to fall. And catch the echo: "born of woman." The offspring of the woman from Genesis 3:15 has arrived to bruise the serpent — and to be bruised.
This is why Martin Luther told people not to sniff at the Old Testament as a primitive prelude:
"Here you will find the swaddling cloths and the manger in which Christ lies... Simple and lowly are these swaddling cloths, but dear is the treasure, Christ, who lies in them." — Martin Luther, Preface to the Old Testament
The genealogies, the laws, the kings, the prophets — swaddling cloths. Plain fabric, wrapped around a treasure. Goldsworthy says the same thing as a rule of reading:
"Every part of the Bible, from Genesis to Revelation, bears witness to Christ and finds its meaning in relation to him." — Graeme Goldsworthy, According to Plan
The parts are not equally obvious. But they are all in the flight path.
Cashing the cheque
Paul compresses the entire argument of today into one verse — written, remarkably, to defend why his own travel plans changed: 2 Corinthians 1:20 — "For all the promises of God find their Yes in him. That is why it is through him that we utter our Amen to God for his glory." All the promises. Not most. The serpent-crusher, the blessing for all families, the forever throne, the child called Mighty God, the new covenant — every one of them is a Yes with Jesus's face on it.
Charles Spurgeon, who wrote a daily devotional working through God's promises one by one, gave believers a wonderfully practical picture:
"A promise from God may very instructively be compared to a cheque payable to order. It is given to the believer with the view of bestowing upon him some good thing." — Charles Spurgeon, Faith's Chequebook
A cheque in a drawer pays for nothing. You have to endorse it — sign your own name under the promiser's — and present it. That is what prayer and faith do with the promises of God. We tend to treat his promises like framed art: lovely on the wall, never taken to the bank. Spurgeon's point is that they are currency. And here is what guarantees the funds: the account has already cleared at the cross. Goldsworthy once more:
"The gospel — the life, death, and resurrection of Jesus — is the interpretive key to the whole Bible." — Graeme Goldsworthy, Gospel and Kingdom
Here, finally, is why the arrow matters for your actual life. Notice what the gospel-as-key means: you do not earn the promises by performance; you inherit them by union with the one in whom they are already Yes. Your hope does not hang on whether your circumstances are cycling up or down this month. It hangs on whether God finishes what he starts — and the Bible is one long demonstration that he does. He kept a promise across two thousand years, through famines, slaveries, exiles, and four hundred years of silence, down to a feeding trough in Bethlehem and a cross outside Jerusalem. The wounded victor has already crushed the serpent's head. Every promise still outstanding — resurrection, justice, a world made new — is flying on the same arrow. It has never once missed.
Going Deeper
Find a blank page and draw a literal arrow across it. Mark five points along the shaft and label them: Genesis 3:15, Genesis 12:1-3, 2 Samuel 7:12-16, Isaiah 9:6-7, Jeremiah 31:31. At the arrowhead write "2 Corinthians 1:20 — Yes." Then, under the arrowhead, add one promise you personally are waiting on God to keep. Looking at it on the same shaft as the others — does it feel different there?
Key Quotes
“Biblical theology is nothing more nor less than allowing the Bible to speak as a whole: as the one word of the one God about the one way of salvation.”
“The Work of Redemption is a work that God carries on from the fall of man to the end of the world.”
“Here you will find the swaddling cloths and the manger in which Christ lies... Simple and lowly are these swaddling cloths, but dear is the treasure, Christ, who lies in them.”
“Every part of the Bible, from Genesis to Revelation, bears witness to Christ and finds its meaning in relation to him.”
“A promise from God may very instructively be compared to a cheque payable to order. It is given to the believer with the view of bestowing upon him some good thing.”
“The gospel — the life, death, and resurrection of Jesus — is the interpretive key to the whole Bible.”
Prayer Focus
Pick one promise of God you are still waiting on — for healing, for a prodigal, for peace that lasts. Hold it up to God next to 2 Corinthians 1:20 and say: 'Lord, every promise finds its Yes in Jesus. I believe this one is flying toward its target too.' Ask him for the patience of Abraham, who carried a promise for twenty-five years before he held the baby.
Meditation
Genesis 3:15 promises a wounded victor — the serpent-crusher whose heel is bruised in the crushing. Sit with that detail. Why do you think God built the cost of victory into the very first promise of the Bible?
Question for Discussion
Spurgeon said a promise of God is like a signed cheque — worthless in a drawer, priceless when endorsed and presented. Which of God's promises do you believe in theory but have never actually 'presented at the bank' in prayer? What keeps you from doing it?