Commenting on Galatians 4:12-20, Andrew Das quotes favorably Walter Hansen’s commentary on Galatians.
I once hear a son speak at his father’s funeral service about his inheritance. He said, “The greatest inheritance my father left me was not what he had but what he was. He was a man of integrity; he was humble and often admitted his own failures. He was generous and compassionate. Above all, he was a man of deep faith in God. That’s the inheritance that I most treasure, the inheritance of the character of my father.” As children of God, we can say the same. Our greatest inheritance is not the abundance of things the Father gives us, but the character of his Son which the Spirit of his Son is forming within us.
Das, A. Andrew Concordia Commentary: Galatians 474