10 I have seen all the trouble, which God has given to the sons of men to be burdened with.
Ecclesiastes 3:10 Cross References - CAB
Genesis 3:19
19 (3:20) In the sweat of your face shall you eat your bread until you return to the ground out of which you were taken, for dust you are, and to dust you shall return.
Ecclesiastes 1:13-14
Ecclesiastes 2:26
26 For God has given wisdom, knowledge, and joy to the man who is good in His sight, but He has given to the sinner trouble, to add and to heap up, that He may give to him that is good before God; for this is also vanity and grasping for the wind.
1 Thessalonians 2:9
9 For you remember, brothers, our labor and toil; for laboring night and day, that we might not be a burden to any of you, we proclaimed to you the gospel of God.
2 Thessalonians 3:8
8 nor did we eat bread from anyone without paying, but in labor and hardship, working night and day, so as not to be a burden to any of you,