Galatians 3:19

Galatians 3:18-20 MSG

What is the point, then, of the law, the attached addendum? It was a thoughtful addition to the original covenant promises made to Abraham. The purpose of the law was to keep a sinful people in the way of salvation until Christ (the descendant) came, inheriting the promises and distributing them to us. Obviously this law was not a firsthand encounter with God. It was arranged by angelic messengers through a middleman, Moses. But if there is a middleman as there was at Sinai, then the people are not dealing directly with God, are they? But the original promise is the direct blessing of God, received by faith.
MSG: The Message