Paul was concerned that the Christians at Galatia, who had received salvation by faith in Christ, were exchanging their faith for a focus on law-keeping. Those saved by faith are to live by faith, not by works. Yet this tendency still befalls many believers today. We recognize our sin and total dependence on Jesus for salvation, but then try to live the Christian life in our own strength. A focus on law-keeping leads to self-righteousness, pride and an inordinate comparing of ourselves to others. Living by faith in Jesus, we work, but we do so only according to Christ’s power. We work out what God is working in us (Phil.2:12-13). Our righteousness is us in Christ. And our life is Christ in us.