What does Galatians 2:16 mean?
Galatians 2:16 is one of the key verses of this book and of all the New Testament. In short, Christianity does not exist without this pivotal truth about "justification."Many of us tune out when we hear words like "justification." The word sounds theological and "churchy." But we can't be right with God without it, so it matters that we make an effort to understand it. Justified, in Christian theology, simply means "declared righteous." In order to be saved, to be in relationship with a holy God, he must declare us righteous in His eyes. The problem, of course, is that we aren't actually righteous. We are sinful people. So how in the world can God declare us to be righteous? That's the question this verse begins to answer.
Paul immediately eliminates one path to being justified or declared righteous by God. The works of the Law won't work. Period. Nobody can be justified that way. The only way for anyone to be justified before God is faith, belief in Jesus Christ. Earlier in this letter, Paul went so far as to point out that those who claim additional requirements are needed for salvation are not, themselves, saved believers—they are "false brothers" (Galatians 2:4). There is no "other gospel," and whatever is not true is false (Galatians 1:8–9).
Paul began his letter by describing Jesus as the one who gave Himself for our sins. In other words, He died to fully pay the penalty for all of the sins that make us unrighteous, unjustified before God. Now the only way to be justified is to believe in the Jesus who did that for us. Paul declares that though he, like Peter, was Jewish by birth, all people are justified by faith in Christ, not heritage or traditions.