Is There Such a Thing as a Gift You Must Earn?
Galatians

Even human covenants are not altered or set aside after they have been ratified (Gal )

How much more, then, is God's covenant secure? (Gal )

The Law (which came later) certainly did not invalidate the Covenant which preceded it (Gal )

The promised blessings cannot be based on both the Covenant and the Law - They are mutually exclusive! (Gal )

There is no such thing as a gift that you must earn!