The Promise and the Faith

God speaks to Abram: "Fear not, Abram, I am your shield; your reward shall be very great."

Abram voices his concern: he is childless. His current heir is a servant from his household, Eliezer of Damascus. How can he have a great reward if he has no heir of his own body? He has been given the most expansive promises in human history, and he still has no son.

God directs him outside to count the stars:

"Look toward heaven, and number the stars, if you are able to number them. So shall your offspring be." — Genesis 15:5 (ESV)

Abram trusts God's word despite the visible absence of fulfillment. He has no children. He is old. Sarai is barren. Yet he believes. And the text marks this trust as covenant-significant:

"And he believed the Lord, and he counted it to him as righteousness." — Genesis 15:6 (ESV)

This is one of the most important sentences in the whole Bible, and it comes before any law, before circumcision, before any formal religious structure. Abram is declared right with God through trust, not achievement. Paul's later use of this verse in Romans 4 builds the entire argument that covenant standing begins with faith in God — not with ritual observance that came later. Faith itself is the foundation. Abraham is Exhibit A. We find that quietly revolutionary: God counts trust as righteousness. Not performance. Not law-keeping. Not a long track record of obedience. He believed God. It was credited to him as righteousness.

The Covenant Ceremony

God confirms the land promise through a formal covenant rite. Abram asks: "O Lord God, how am I to know that I shall possess it?" And God answers with a ceremony.

Abram prepares animals — a heifer, a goat, a ram, a turtledove, and a young pigeon. He cuts the larger animals in half and arranges the pieces. This is a recognized ancient covenant form: the parties to an agreement would walk between the divided animal pieces, symbolically invoking the same fate on themselves if they broke the covenant. The act meant: may what happened to these animals happen to me if I violate this oath.

As the sun sets, vultures come and Abram drives them away. Then a deep sleep falls on him, and darkness descends — a thick, dreadful darkness. God speaks during this sleep and reveals something sobering: Abram's descendants will be strangers in a foreign land, afflicted for four hundred years, before they are brought out with great possessions and return to this land. The promise includes suffering on the road to fulfillment. It is not a comfortable vision.

Then something remarkable happens:

"When the sun had gone down and it was dark, behold, a smoking fire pot and a flaming torch passed between these pieces." — Genesis 15:17 (ESV)

God's symbolic presence passes between the pieces. Abram does not. He is asleep, passive, a witness. Only God walks through. Only God binds Himself. In a covenant form where both parties would normally pass through together, God alone takes the oath. He alone bears the consequences of the covenant. He is saying: I will keep this. Even if you don't.

Keil and Delitzsch have emphasized the unilateral character of this covenant rite: God alone binds Himself. This is not a mutual contract between equals. This is a divine commitment made to a sleeping man. The fulfillment of the promise rests entirely on God's faithfulness, not on Abram's negotiating strength or track record.

What we keep coming back to here is the sheer weight of what God does. He doesn't make Abram earn the covenant or walk through the pieces himself. He lets Abram sleep, and He walks through alone. The covenant is real, and it is entirely on God. That is the kind of promise this is.

The Household Fracture

Yet waiting remains difficult. Ten years pass since the call in Haran. Sarai is still barren. The promise has not moved visibly. In chapter 16, Sarai proposes a solution using cultural logic that would have been familiar and legal in the ancient Near East: she gives her Egyptian servant Hagar to Abram as a secondary wife, so that Sarai might obtain children through her. The text is straightforward: "And Abram listened to the voice of Sarai."

Hagar conceives quickly. But conception turns into conflict. Once Hagar knows she is pregnant, the dynamic between her and Sarai shifts. The text says Hagar looked on Sarai with contempt. And Sarai, who proposed the arrangement, now turns on Abram: "May the wrong done to me be on you!" She blames Abram for the very situation she initiated. Abram defers: "Your servant is in your power; do to her as you please." And Sarai mistreats Hagar until Hagar flees.

The whole sequence is uncomfortable and recognizably human. Sarai's plan comes from a real, painful place — she has been waiting years for a promise that hasn't come. The cultural shortcut made sense in their world. But it multiplied the pain instead of resolving it. The scheme produces a pregnancy, a fractured household, contempt, jealousy, and a woman fleeing alone into the wilderness. Human shortcuts rarely solve what they're trying to solve.

In the wilderness, something remarkable happens. The angel of the Lord finds Hagar. This is the first recorded appearance of the Angel of the Lord in Scripture, and it is not to a patriarch, not to a priest, not to a king. It is to a foreign slave woman, pregnant and alone, sitting by a spring of water on the road back to Egypt.

"The angel of the Lord found her by a spring of water in the wilderness, the spring on the way to Shur. And he said, 'Hagar, servant of Sarai, where have you come from and where are you going?'" — Genesis 16:7–8 (ESV)

He knows her name. He knows who she belongs to. He asks her where she is going — a question that carries more weight than it might seem, since she is running back toward Egypt, toward who she was before all of this.

The angel instructs her to return and submit to Sarai. This is not a comfortable command. But then he makes her a promise: her offspring will be multiplied. Her son will be named Ishmael — which means God hears — because God has heard her affliction. And then Hagar does something no other person in Genesis has done yet: she gives God a name.

"So she called the name of the Lord who spoke to her, 'You are a God of seeing,' for she said, 'Truly here I have seen him who looks after me.'" The name is El Roi — the God who sees. She says: "Have I really seen the one who sees me?"

A foreign slave woman, cast out into the wilderness by the household of the covenant, is the first person in the Bible to name God. She names Him the God who sees. And her son's name — God hears — carries that encounter forward into every generation that bears it.

Calvin and Henry both treat Genesis 16 as a warning against forcing promise fulfillment through anxious schemes. That reading is correct. But the episode is also something else: it is God refusing to be contained within the boundaries of the chosen family. Hagar is not in the covenant line. She is not the mother of the heir. She is a slave woman who was used as a means to an end and then discarded. And God sees her. God hears her. God names Himself after His attention to her. We don't think this is incidental. We think this is Genesis being honest about what God's care actually looks like — it does not stop at the edge of who's chosen.

Abram obeys Sarai and takes Hagar. Ishmael is born when Abram is eighty-six years old. He is not the covenant heir. The covenant line narrows through Isaac, who will come later. Yet Ishmael is also remembered under promise. He is Abraham's son. God sees him.

Last updated: March 3, 2026.

Scripture quotations are from the ESV® Bible (The Holy Bible, English Standard Version®), © 2001 by Crossway, a publishing ministry of Good News Publishers.