In this verse, the apostle Paul highlights a crucial aspect of Christian doctrine: the insufficiency of the law for justification. The law, with its rules and regulations, was never intended to be the means by which people are made right with God. Instead, Paul points to faith as the true path to righteousness. This concept is rooted in the idea that human efforts and adherence to the law cannot achieve the perfection required by God.
Paul quotes from the Old Testament, "the righteous will live by faith," to show that this principle has always been part of God's plan. Faith is not just belief in God, but a deep trust and reliance on His grace and mercy. This faith leads to a transformed life, one that reflects God's love and righteousness. It is a call to move beyond legalism and embrace a faith that is active and alive, influencing every aspect of a believer's life. This teaching is central to understanding the Christian message of salvation by grace through faith, and it encourages believers to focus on their relationship with God rather than merely following rules.