The Faith That Leads to Action: Lessons from the Life of Abraham

Everyone has faith. This isn’t a question of whether you possess it, but rather what you’ve placed it in. The crucial distinction is this: not all faith saves.

Faith can be defined as the belief and trust in an object that leads to action. It encompasses head knowledge—the facts and ideas we know—combined with heart-level trust that goes deeper than mere intellectual assent. This faith is directed toward an object, and it always produces action: outward obedience, thoughts, speech, feelings, and desires. All of these flow from where our faith truly rests.

Martin Luther captured this beautifully: “We are saved by faith alone, but faith that saves is never alone.” Genuine faith always leads somewhere, always produces something visible in our lives.

A Random Pagan’s Radical Obedience

Consider Abraham’s story. Before God called him, he was simply Abram—a random pagan from a random pagan town, living in a family that moved between cities known for idol worship. We also know that his wife, Sarai, was barren, which carried devastating implications beyond emotional heartbreak. In that culture, childlessness meant no future provision, no one to care for you in old age, no social standing, and no inheritance to pass on.

Then God spoke to this unlikely candidate: “Go from your country and your kindred and your father’s house to the land that I will show you” (Genesis 12:1).

This wasn’t like relocating to a new city with a job lined up and a church community waiting. God was calling Abram to abandon everything—his identity, his entire social network (with no way to stay in touch), his physical security, his future provision, and his inheritance. This was God saying, “Jump out of the plane and trust that the parachute will work.”

God was asking Abram to transfer his faith from everything he had known and trusted to God alone.

Abram’s response? “So Abram went as the Lord had told him” (Genesis 12:4).

This is why Abraham stands in the hall of faith in Hebrews 11. He didn’t know where he was going or anything about his destination, but his faith was in God. We know Abraham had faith because he obeyed. His obedience was the evidence of his faith. Faith is always revealed by our actions, always manifested in how we live.

When Faith Falters

Yet Abraham’s journey wasn’t a straight line of perfect obedience. Between God’s initial call and the fulfillment of His promise, there were significant ups and downs.

In Genesis 15, God renewed His covenant with Abraham, explicitly promising that he and Sarah would have a son together. But by chapter 16, the tension had grown unbearable. Abraham was about 86 years old, Sarah was 76, and still no child had come.

Sarah proposed a culturally acceptable solution: use her Egyptian servant Hagar as a surrogate. Legal codes from that era explicitly outlined this practice. While it may seem strange to us, it was common in their world.

What would a faithful response have looked like? Abraham might have said, “No, we’re not doing that. God promised to provide an heir, so we’re going to trust Him—even at our age.”

Instead, “Abram listened to the voice of Sarai” (Genesis 16:2).

The results were predictably disastrous. Relationships fractured. Sin entered the picture. Strife erupted between Abraham and Sarah, between Sarah and Hagar. This wasn’t just a foolish plan—it was a rejection of God’s promises. Abraham and Sarah had taken their faith out of God’s hands and placed it in their own ability to accomplish God’s purposes on their timeline.

Abraham’s actions revealed that in that moment, his faith was not in the character and promises of God.

And if we’re honest, we’re not that different. We don’t live every moment of every day with our faith entirely in God’s character and promises. Every day we misplace our faith—in ourselves, in systems around us, in other people.

This is why it’s such good news that God’s mercy is new every morning. We need it every single day.

The Ultimate Test

Years passed. In Genesis 21, the miracle finally happened. At 100 years old, Abraham became the father of Isaac, the promised son. God had proven Himself faithful.

Then came Genesis 22: “After these things God tested Abraham and said to him, ‘Abraham!’ And he said, ‘Here I am.’ He said, ‘Take your son, your only son Isaac, whom you love, and go to the land of Moriah, and offer him there as a burnt offering'” (Genesis 22:1-2).

Imagine the confusion, the agony. Years of waiting for this son. Finally he arrives. Isaac is growing up, probably a teenager now. And God says, “Go sacrifice him.” He even twists the knife: “your son, your only son Isaac, whom you love.”

Abraham’s response? “So Abraham rose early in the morning” (Genesis 22:3). Immediate obedience. No delay.

As Abraham raised the knife over his bound son on the altar, a voice from heaven stopped him: “Do not lay your hand on the boy or do anything to him, for now I know that you fear God, seeing you have not withheld your son, your only son, from me” (Genesis 22:12).

Hebrews tells us that Abraham believed God could even raise Isaac from the dead. That’s the level of faith Abraham had developed—faith so deep that he could obey despite what it looked like, trusting that God would accomplish His purposes.

This is the result of a man who persevered in faith throughout his life. Not perfectly—we’ve seen his failures—but persistently, walking with God through ups and downs.

The Greater Son

Isaac didn’t need to be sacrificed that day. God provided a ram caught in the thicket. They named that mountain “The Lord Will Provide.”

But 2,000 years later, there would be another Son who also carried wood up a hill. This time the wood wasn’t sticks for an altar but a cross. This time there was no ram in the thicket. This time the knife came down. The Father did not withhold His hand.

This Son was the Lamb that God provided—not to prove the Father’s faith, but to be the salvation of the world, the salvation of all who would become adopted sons and daughters of the true Father.

While Isaac was figuratively raised from the dead, this Son was literally raised. Jesus is alive today, the once-for-all Lamb of God sacrificed in our place, raised to new life so we can be raised to new life as well.

Faith That Transforms

Our actions don’t save us. Jesus’ obedience saves us, not our own. We’re justified by faith in Christ alone. But genuine faith in Christ always leads to obedience. Obedience is the evidence of saving faith.

The question isn’t whether we need to do more or behave better. The question is: where is our faith? Our actions reveal what we actually believe, where our faith actually rests. Use the outside to look into your soul.

When the Lamb of God enters the throne room in Revelation 5, thousands upon thousands fall before Him and sing: “Worthy are you to take the scroll and to open its seals, for you were slain, and by your blood you ransomed people for God from every tribe and language and people and nation” (Revelation 5:9).

Because of who Jesus is and what He has done, He is worthy of our obedience. He is worthy of our lives. He is worthy of all our faith.

Where is your faith today?

This content was created with AI assistance based on a recent sermon preached at Cross+Crown and reviewed by church staff. You can access the sermon here.