Are you rebuilding what the gospel already tore down? In Galatians 2:17–18, Pastor Bobby Bosler shows how Paul’s sharp questions—“Is Christ a minister of sin?” and “If I build again the things which I destroyed…”—expose the danger of drifting back to law-dependence after being justified by faith. Tracing Peter’s wobble at Antioch and Paul’s response, we learn how justification by faith connects to everyday sanctification—“not I, but Christ”—so we live unto God by trusting the indwelling Christ rather than propping up old rules.