* speak.
  10  9:7  1Co 7:6,12,25 
 * by occasion.
  1-3  9:2  Ro 11:12-14  Heb 10:24 
 * prove.
  24  6:6  Jos 24:14  Eze 33:31  Ro 12:9  Eph 4:15  *marg: 
  Eph 6:24  Jas 2:14-16  1Pe 1:22  1Jo 3:17-19