Which are a shadow of things to come; but the body is of Christ.
Things to come - blessings of the Christian covenant. Compare "ages to come" - i:e., the Gospel dispensation (Ephesians 2:7; Hebrews 2:5, "the world to come").
The body is of Christ. The real substance (of the blessings 'shadowed' beforehand by the law) belongs to Christ (Hebrews 8:5; Hebrews 10:1).