Jeremiah 1:19

they shall not prevail against thee When we compare portions of the subsequent history of Jeremiah, we find that in point of fact the prophet was from time to time at the mercy of his foes. The sense therefore here is shall not finally prevail. Before the prophet's death his cause should be vindicated, his predictions verified, and good seed sown. Cp. the nature of the fulfilment of our Saviour's prayer in Luke 22:32.