Problem #1: If your goal is possessions, you are never satisfied. If you are rich then your life is probably focused on getting richer. That doesn’t mean poor people are immune to this problem.
It is not a matter of rich or poor. This means if your goal is to get money you will never reach a point of satisfaction. You will always strive for your next pay raise or switch jobs for an increase in pay. The "good job" will always be the highest paying job. Basic principle: You cannot be satisfied with money.

“This too is meaningless.” – Ecclesiastes 5:10

You will have to learn to be content with your pay and your possessions as Paul did. Paul discussed this in Philippians 4:11-12,

“I have learned to be content whatever the circumstances… I have learned the secret of being content in any and every situation.” – Philippians 4:11-12

It is important to learn to be content, so you can begin to strive in life for something greater than possessions. Paul did this and addressed it in Philippians 3:12-14:

“Not that I have already obtained all this, or have already arrived at my goal, but I press on to take hold of that for which Christ Jesus took hold of me.”
– Philippians 3:12

Problem #2: The more you grow the more you spend. If your pay check increases, so does the amount you spend. If your business grows you have to hire help. Bigger is not always better. And, more cash flow is not always more wealth. Business growth is proportionate to the number of people who get a cut of the profits. More profit usually equal a bigger payroll. So, the question could be asked:

“And what benefit are they to the owners.” – Ecclesiastes 5:11

Problem #3: More stuff results in more worry about potential loss. The greater your investments the more concern over possible mistakes and bad decisions. Solomon knew these feelings. Solomon watched his laborers building his buildings, managing his investments and overseeing his business affairs. Solomon summed up the difference between himself and his laborers in a simple comparison. The difference was clearly seen in the amount and the quality of sleep. Solomon was wealthier in possessions, but the laborer had a higher quality of life!

“The sleep of a laborer is sweet, whether they eat little or much, but as for the rich, their abundance permits them no sleep." – Ecclesiastes 5:12

“The church that marries the spirit of an age becomes a widow in the next generation.” - Dean William Inge (1997)

622-750 AD   
Muslim Expansion

Muslims conquered the Middle East in three waves of military expansion:

1. 622-632 under Muhammad they took the Arabian Peninsula.

2. 632-661 they took part of North Africa and the Sasanian (Iranian) Empire (the old Babylonian Empire). Jerusalem, Antioch and Alexandria were taken from the Christians. The building of the Dome of the Rock on the temple mound in Jerusalem began.

3. 661-750 Muslims took the rest of North Africa, and cross the Strait of Gilbraltar to take Gaul (Spain) in 711. The Muslim Empire extended from the coast of the Atlantic Ocean in North Africa to the borders of modern Pakistan.