HARD SAYINGS; HARD SENTENCES

sa'-ingz;, sen'-ten-siz: In Daniel 5:12 the King James Version (Aramaic 'aqiahan), the Revised Version (British and American) "dark sentences," of enigmatic utterances which preternatural wisdom was needed to interpret; in John 6:60 (skleros .... ho logos), of sayings (Christ's words at Capernaum about eating His flesh and drinking His blood) difficult for the natural mind to understand (compare John 6:52).

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.