2 Corinthians 3:9-10

The New Covenant is also more glorious than the Old in that it manifests the character and purposes of God more fully and finally. Similarly the dawning of the sun transcends and supercedes the illumination of the moon. Greater glory attends the proclamation of the gospel than was true when God gave the Mosaic Law.

The purpose of the New Covenant is to produce righteousness. The purpose of the Old Covenant was to show that humans stand condemned because we cannot please God by obeying Him completely. Both covenants had both purposes, but their primary characteristics are what Paul contrasted here. This is Paul’s sixth contrast.