“ ‘My sheep hear my voice, and a stranger they will not hear, but flee from him.’ [John 10:5] To hear his voice (which is also the voice of God the Father) is to understand and obey the same; and to flee from a stranger is to admit none other doctrine, worshipping, nor honouring God than has proceeded from his own mouth – as he himself testifies, saying, ‘All that are of the verity, hear my voice.'[ John 18:37] ” John Knox
Works, 3:40-41; Selected Writings, 1:30.