17. Since then, all these are clear proofs confirming the divine power of the Saviour of us all, Who is he whose soul (partakes) so much of iron, as not to give his testimony to the truth ? and to confess His divine and living (active) power ? For it is of the living, and not of the dead, that these deeds are. For the visual perception of something distant is, they say, (the effect) of some thing (really) visible.