How can a guilty sinner ever be made righteous before an infinitely holy God? This question lies at the heart of Genesis 15, where God reassures Abram that He is both his shield and his exceedingly great reward. Having rejected the riches of Sodom, Abram is reminded that the Lord Himself is the source of his protection and blessing. Yet Abram remains troubled by his childlessness and the apparent impossibility of God's promise to give him countless descendants. In response, God brings Abram outside beneath the night sky and commands him to count the innumerable stars, declaring that his offspring will be just as numerous. Despite his circumstances, Abram believes in the Lord, and God reckons his faith as righteousness. This extraordinary declaration establishes the biblical doctrine of justification by faith alone, revealing that righteousness is not earned through human works but credited to the believer through faith in God. The apostle Paul later explains in Romans 4 that this promise was recorded not merely for Abraham's sake but for all who believe in the God who raised Jesus Christ from the dead. Just as Abraham trusted God to bring life from Sarah's barren womb, sinners must trust in the resurrection of Christ, who bore their transgressions and secured their justification. Through faith, Christ's perfect righteousness is imputed to the believer, granting what no human effort could ever achieve: peace with God.