20 Therefore I began to cause my heart to despair concerning all the labor in which I had labored under the sun.
Ecclesiastes 2:20 Cross References - WEB
Genesis 43:14
14 May God Almighty give you mercy before the man, that he may release to you your other brother and Benjamin. If I am bereaved of my children, I am bereaved.”
Job 17:11-15
11 My days are past. My plans are broken off, as are the thoughts of my heart.
12 They change the night into day, saying ‘The light is near’ in the presence of darkness.
13 If I look for Sheol as my house, if I have spread my couch in the darkness,
14 if I have said to corruption, ‘You are my father;’ to the worm, ‘My mother,’ and ‘My sister,’
15 where then is my hope? As for my hope, who will see it?
Psalms 39:6-7
1 Corinthians 15:19
19 If we have only hoped in Christ in this life, we are of all men most pitiable.
2 Corinthians 1:8-10
8 For we don’t desire to have you uninformed, brothers, concerning our affliction which happened to us in Asia, that we were weighed down exceedingly, beyond our power, so much that we despaired even of life.
9 Yes, we ourselves have had the sentence of death within ourselves, that we should not trust in ourselves, but in God who raises the dead,
10 who delivered us out of so great a death, and does deliver; on whom we have set our hope that he will also still deliver us;