Jeremias 12

Jeremias 12:7-8

And although the Apostle himself told the Hebrews that a testament is of no force, until the death of the testator happen, that is to say, a testament is of no strength while the testator liveth, but is established by his death, yet as in Jeremiah the Lord, speaking of the Jews, has said, Mine heritage is unto Me as a lion, he would not deny that they were heirs. But there are heirs without possessions, there are heirs also with them; and while the testator lives those whose names are written in the will are called heirs, though without possessions... As then young children, so the Jews also, are under a schoolmaster. The Law is our schoolmaster, the schoolmaster brings us to our Master; and our One Master is Christ: Neither be ye called masters, for one is your Master, even Christ. — Letter 75.3, 5