Keys to Faith
Genesis 15 & Romans 4:19–22
Have you ever felt like the odds were stacked against you, and yet God was still calling you to live by faith? Even when life’s circumstances are confusing, Genesis 15 gives us clarity on what it means to follow the Lord.
Abram stood under the night sky with nothing visible to suggest that God’s promise could come to pass. He had no child, no heir, and no human solution in sight. Yet in that moment, the Lord brought him outside and said, “Look now toward heaven, and count the stars, if thou be able to number them… so shall thy seed be” (Genesis 15:5). Then comes one of the great statements of faith in all the Bible: “And he believed in the LORD; and he counted it to him for righteousness” (Genesis 15:6).
Before the law was ever given, and before circumcision was instituted as the covenant sign, Abram was declared righteous by faith. He simply believed the Lord. God not only gave Abram a promise; He gave him Himself as the foundation of that promise.
When the Apostle Paul reflects on Genesis 15 in Romans 4, he helps us understand Abram’s faith. Paul describes a faith that faces reality without surrendering to unbelief—a faith anchored not in human ability, but in the power and faithfulness of God. Abram knew the odds were stacked against him, but that did not deter him from believing the promise of God. Paul writes, “He did not weaken in faith when he considered his own body, which was as good as dead (since he was about a hundred years old), or when he considered the barrenness of Sarah’s womb” (Romans 4:19). Abraham understood that the fulfillment of the promise depended on the never-failing Word of God. He believed simply because God had spoken.
First, faith does not focus on impossibilities—God has the final word. Abraham considered his own body, now aged, and the barrenness of Sarah’s womb, yet he did not weaken in faith (Romans 4:19). Abraham was not pretending the problem did not exist. Biblical faith is not denial. It does not ignore reality. It simply refuses to let the problem speak louder than the promise of God. Faith looks honestly at the facts, but it places those facts beneath the authority of God’s Word.
Second, faith does not waver through unbelief. Abram spoke honestly with the Lord about his childlessness, but he did not retreat from God’s promise. He brought his questions into the presence of God and remained there. As Paul writes in Romans 4:20, Abraham “staggered not at the promise of God through unbelief.” That is an important reminder for us: faith is not the absence of questions; it is the refusal to abandon God despite them.
Third, faith gives glory to God. Romans 4:20 says Abraham was “strong in faith, giving glory to God.” To trust God while still waiting glorifies Him. It honors His character. It magnifies His faithfulness. It declares that God is worthy to be trusted even before the answer comes.Abraham’s faith was not passive resignation; it was an active confidence in the God who cannot= lie. Real faith always lifts our eyes above ourselves and places the focus back on the Lord.
Fourth, faith is fully persuaded that God is able to do what He has promised. Paul writes that Abraham was “fully persuaded that, what he had promised, he was able also to perform” (Romans 4:21). That is the essence of faith. Abraham’s confidence did not rest in his strength, Sarah’s ability, or the probability of the situation. His confidence rested in God alone. Faith is not positive thinking. It is not confidence in ourselves. It is confidence in the character, power, and reliability of the One who has spoken.
And how does the truth in Genesis 15 and Romans 4 speak to us today? How often are we tempted to fix the problem in our own strength and understanding, and then try to fit God into our solution? We try to put God “in our box.” But biblical faith works the other way around. It begins with God. It looks first to His promise, His covenant, His power, and His faithfulness—and only then does it look at the problem. When we start with the Lord, everything else begins to find its proper place.
Abraham’s story reminds us that faith is not about having all the answers. It is about taking God at His Word. It is about trusting that what He has promised, He is able also to perform. The God who made covenant with Abram is the same God who remains faithful today. And the same kind of faith that was counted to Abraham for righteousness is the faith God still calls us to live by now—not a perfect faith, but a God-centered faith—one that does not waver, one that gives Him glory, and one that is fully persuaded that He will do what He has said.