Clarities of the Mysteries
The mysteries (Trinity, incarnation, atonement, and so forth) are much more clearly revealed in the New Testament; the promises are much richer in content and embrace especially spiritual and eternal goods; the laws are much more glorious and lighter since the ceremonial and civil laws have been abolished and replaced by only a handful of ceremonies.
Herman Bavinck, Reformed Dogmatics: Holy Spirit, Church, and New Creation, ed. John Bolt, trans. John Vriend, vol. 4 (Grand Rapids, MI: Baker Academic, 2008), 452