Colossians 2:17

Which are a shadow... but the body (the substance) is of Christ. — The spirit of the passage is precisely that of the argument which runs through the Epistle to the Hebrews. “The Law had a shadow of good things to come, not the very image (or, substance) of the things” (Hebrews 10:1). When St. Paul deals with the legal and coercive aspect of the Law, he calls it “the schoolmaster to bring us to Christ.” (See Galatians 3:24, and Note there.) When he turns to its ritual aspect, he describes it as simply foreshadowing or typifying the substance; and therefore useful before the revelation of the substance, useless or (if trusted in) worse than useless, after it. In every way “Christ is the end of the Law” (Romans 10:4).