The Abrahamic Covenant: Confidence in Faith While Waiting

The Certainty of the Covenant in Genesis 15 and 17: Faith Held Fast While Waiting

The Abrahamic covenant is a major thread for understanding the whole Bible. When we consider this subject, we need to look beyond one isolated scene and see how God repeatedly confirms his promise and reveals it more clearly. Genesis 15 and 17 especially make Abraham’s faith, God’s faithfulness, and the meaning of the covenant sign stand out. As we read these two chapters slowly, it becomes clear that faith is not vague optimism or confidence in ourselves, but trust in the God who has spoken.

The atmosphere of Genesis 15 is quieter and heavier than we might expect. Abram had already been living in response to God’s call, yet he still had little in his hands. He had received a promise, but he had no child, and the future was difficult to picture. Then God speaks to the fearful Abram: “Do not be afraid, Abram. I am your shield, your very great reward” (Genesis 15:1). Fear also comes to people of faith. Scripture does not hide that fact. Instead, God appears as the one who does not use only people who have no fear, but comes to people in the midst of fear with his Word.

Abram asks God an honest question. I have no child, so what will you give me? This question is less a simple complaint than a lament offered before a reality he still cannot understand while holding on to the promise. God does not merely rebuke Abram; he takes him outside and shows him the stars of heaven. Then he says, “So shall your offspring be” (Genesis 15:5). The reality before his eyes is empty, but God’s Word declares an even greater future. This is where faith becomes visible: in treating what God has said as more true than the circumstances we can see.

That is why Genesis 15:6 holds such an important place throughout the Bible: “Abram believed the LORD, and he credited it to him as righteousness.” People cannot stand before God on the basis of their merit or achievements. God’s way of declaring sinners righteous is given through faith alone. The core of justification by faith is already clear in this scene. Abram was not declared righteous because he was perfect, nor because he had no wavering, but because he believed the God who had promised. This also gives us great comfort today. Because God, the object of our faith, is certain, our salvation rests not on our own condition but on God’s grace.

The background of this chapter includes the ancient Near Eastern practice of making a covenant. Animals would be cut in two, and the parties would pass between them to affirm the weight of their promise. In Genesis 15, however, while Abram has fallen into a deep sleep, a smoking firepot and a blazing torch pass between the pieces (Genesis 15:17). This scene strongly shows that God himself takes final responsibility for the covenant. Human weakness is evident, yet the covenant does not collapse because its foundation is not human consistency but God’s faithfulness. Rather than exaggerating Abraham’s greatness, Scripture reveals the greatness of the God who holds on to his promise to the end.

In Genesis 17, the covenant is confirmed in a more concrete way. God changes Abram’s name to Abraham and Sarai’s name to Sarah. In the Bible, a change of name is not merely a change of address; it also carries a change of identity and calling. Within the covenant God takes the initiative to establish, people are called by a new name and into a new place. God says, “I will establish my covenant between me and you and your offspring after you throughout their generations as an everlasting covenant” (Genesis 17:7). This declaration clearly shows the continuity and certainty of the covenant.

This chapter also gives circumcision as the sign of the covenant. A sign is not an act that pays the price of salvation; it is a mark that helps people remember that they belong to God. People forget easily. Even a promise held yesterday can become blurred before today’s anxiety. Therefore, God not only gave his Word but also allowed a sign that would help his people remember. We too need to read the Word repeatedly, recall the gospel, and confirm grace in worship. This is not formal repetition; it is a means of grace through which God holds hearts that are quick to forget upon the truth of the covenant. Continuing Bible Reading steadily or recalling the Word through Today’s Word can be one such application.

It is important here that Abraham’s life was not smooth or perfect. He wavered while waiting and sometimes made impatient choices. Yet his failures could not cancel God’s covenant. This does not mean that sin may be taken lightly. Rather, it means that God’s grace is greater than human weakness and that God holds his people to the end. We are similar. In the Christian life, we often want an immediate answer and wish we could see the result at once. But God frequently shapes us through waiting. Even when a promise appears delayed, God’s plan has not stopped. During that time, we learn more deeply not only the promise itself but also the one who made it.

For example, a person may feel his heart collapsing before a problem over which he has prayed for a long time. The direction of a career may be unclear, reconciliation in a relationship may be slow, or concerns about a family may not easily be resolved. In such moments, we tend to judge God by visible results. But Genesis 15 and 17 teach us to look differently: even when circumstances have not changed, God’s Word has not changed. Faith is not a certainty that appears after everything has been put in order; it is trusting God’s character even when we cannot yet see everything.

The New Testament interprets this covenant more brightly in Jesus Christ. Galatians 3 explains that the blessing Abraham received reaches the Gentiles in Christ. The Abrahamic covenant does not remain a story of one nation’s prosperity; it opens onto the broad horizon of the gospel. From the beginning, God planned to open the way of salvation among the nations. To read the Abrahamic covenant is not merely to read the story of an ancient ancestor, but to confirm the roots of the promise of salvation fulfilled in Christ. If you want to read along the whole movement of Scripture, it is also helpful to consider why reading the whole Bible matters.

As you meditate on this passage, you can ask yourself: What must I see before I feel secure? Am I trusting my calculations more than God’s promise? Do I acknowledge how quickly I forget after hearing the Word, and stand in the place of holding on to it repeatedly? Faith does not grow only through a dramatic rise of emotion. It grows as we read the Word again on ordinary days, remember the promise in moments of wavering, and refuse to abandon the direction of obedience even when we do not understand. In this sense, it is also important to understand properly what meditation is and apply it to life.

Genesis 15 and 17 tell us plainly that God does not forget what he has promised. Our steps may be slow and our hearts may often waver, but the foundation of the covenant is not found in us. Rather than boasting about the size of his faith, the believer looks to God, the object of faith. That gaze is the strength that enables us to stand again in a wavering daily life. The waiting season is not wasted time. Even in that time God does not abandon his people, but faithfully carries out what he has said. Therefore, even where results cannot be seen, believers today need not remain only in discouragement; they can hold on to the Word God has given and walk one step at a time in the way of obedience.