5014   heart, human

Ecclesiastes 2:10-23

     5864   futility

Ecclesiastes 2:12-23

     5916   pessimism

Ecclesiastes 2:17-20

     5831   depression
     8713   discouragement

Ecclesiastes 2:17-23

     5081   Adam, life of

Ecclesiastes 2:18-21

     8812   riches, ungodly use