The ancient principle of truth, or, The light within asserted and held forth according to true experience and the faithful testimony of the Scriptures also an appeal to the witness of God in all consciences which is the more sure word of prophesie, the testimony of the Scriptures without, or the voice and testimony of the light and Spirit of God within in the heart - Penington, Isaac 1616-1679 ([s.n.], 1672)
Reproduction of original in the Harvard University Library. - Wing, P1150