Why Are Some Rich and Some Poor?

Surah al-‘Ankabut 29:2
“Do the people think that they will be left to say, “We believe” and they will not be tried?”

Surah al-Baqarah 2:155
“And We will surely test you with something of fear and hunger and a loss of wealth and lives and fruits, but give good tidings to the patient…”

Surah al-Anfal 8:28
“Know well that your belongings and your children are but a trial,23 and that with Allah there is a mighty reward.”