What does it mean that the book of Galatians is progressive revelation?
Progressive revelation means God does not reveal everything from the beginning; He keeps adding revelation to revelation. In Galatians, that principle appears as the blessing of Abraham coming to the Gentiles through Jesus Christ, showing how God unfolds His purposes across Scripture.
Les teaches that Galatians is progressive revelation because God does not always reveal everything exactly from the front. Instead, He keeps adding revelation to revelation. In Galatians 3:14, the point is that the blessing of Abraham might come on the Gentiles through Jesus Christ. This builds on the promise to Abraham and directs attention back to earlier revelation, such as Isaiah 42, to consider through whom the blessing was originally supposed to come.