* Take heed.
  4:9,23  Lu 21:8,34,36  Heb 2:1  3:12  4:1  12:15 
 * your heart.
  13:3  29:18  Job 31:27  Isa 44:20  Jas 1:26  1Jo 5:21  Re 12:9 
  Re 13:14  20:4 
 * and serve.
  8:19  30:17