From dia and saphes (clear); to clear thoroughly, i.e. (figuratively) declare -- tell unto.
see GREEK dia
1. to make clear or plain, to explain, unfold, declare: τήν παραβολήν, Matthew 13:36 L Tr text WH; (Euripides, Phoen. 398; Plato, legg. 6, 754 a.; others; Polybius 2, 1, 1; 3, 52, 5).
2. of things done, to declare, i. e. to tell, announce, narrate: Matthew 18:31; (2 Macc. 1, 18; Polybius 1, 46, 4; 2, 27, 3). Cf. Fischer, De vitiis lexamples N. T., p. 622ff; Winer's De verb. comp. etc. Part v., p. 11.