“Therefore the promises of the Law are conditional. They do not promise life freely; they promise it to those who keep the Law. Therefore they leave consciences in doubt, because no one keeps the Law. But the promises of the new covenant do not have any condition attached; they do not demand anything of us; they do not depend on our worthiness as a condition. Instead, they bring and grant us forgiveness of sins, grace, righteousness, and eternal life freely, for Christ’s sake.”

-Martin Luther’s Greater Commentary on Galatians, LW 26:437