* because.
  7:26  17:23  35:15-17  2Ch 36:16,17  Ne 9:17,29  Zec 7:11-14 
  Ac 7:51,52 
 * hardened.
   This is a metaphor taken from unruly and unbroken oxen, who
   resist the yoke, and break and run away with their gears.

 * that they.
  Ps 58:2-5