30. Reprobate—silver so full of alloy as to be utterly worthless (Isa 1:22). The Jews were fit only for rejection.

     6. we . . . not reprobates—not unable to abide the proof to which ye put us (2Co 13:6). "I trust that" your own Christianity will be recognized by you (observe, "ye shall know," answers to "know your own selves," 2Co 13:5) as sufficient "proof" that ye are not reprobates, but that "Christ speaks in me," without needing a proof from me more trying to yourselves. If ye doubt my apostleship, ye must doubt your own Christianity, for ye are the fruits of my apostleship.