Koheles 9:2

ב הַכֹּל כַּאֲשֶׁר לַכֹּל, מִקְרֶה אֶחָד לַצַּדִּיק וְלָרָשָׁע לַטּוֹב וְלַטָּהוֹר וְלַטָּמֵא, וְלַזֹּבֵחַ, וְלַאֲשֶׁר אֵינֶנּוּ זֹבֵחַ: כַּטּוֹב, כַּחֹטֶא--הַנִּשְׁבָּע, כַּאֲשֶׁר שְׁבוּעָה יָרֵא.

2 All things come alike to all; there is one event to the righteous and to the wicked; to the good and to the clean and to the unclean; to him that sacrificeth and to him that sacrificeth not; as is the good, so is the sinner, and he that sweareth, as he that feareth an oath.

A righteous person should never assume that because he is righteous he has no need to fear suffering and troubles. Even those righteous who have full faith in God were afraid of impending troubles. One example of this is how Yaakov conducted himself prior to his meeting with Esav. He was fully aware that there are no assurances for the righteous in this world and that bad can happen to a tzaddik just like anyone else.

But why are we presented a list with such detail?

Our Sages explain that:

To the righteous refers to Noach, to the wicked refers to Paroh. Each one became lame.

To the good, refers to Moshe, to the clean refers to Aharon, to the unclean refers to the spies. None of them made it to Israel. They all ended up the same.

To him that sacrificeth refers to Yoshiyahu, to him that sacrificeth not refers to Ahab. Yoshiyahu restored the Temple service. Ahab sacrificed to idols. They both died pierced through with arrows.

The good is Dovid HaMelech, the sinner is Nevuchadnezzar. One made efforts to the building of the Temple and one destroyed it. They both reigned for forty years. The one who swore is King Tzidkiyahu who swore not to rebel against Nevuchadnezzar and reneged on his oath. The one that feared an oath was Samson. They both had their eyes poked out.

Things happen to people because that is God's decree, not because of their being righteous or wicked or some other factor in their behavior. If a person dies young, people are apt to say that he ate too much, or worked too hard, or was too stressed out. None of these is certain. The bottom line is that in Heaven his time was up. If a person becomes wealthy people say that he must have gotten lucky, or he was dishonest, or he inherited it, the truth is that wealth comes from the owner of all the wealth. The same is true for someone who loses all his money. It doesn't mean that he spent foolishly or didn't make wise investments.

There is no distinction between the righteous and the wicked so that there should be room for Free Will. So that no one will be righteous for ulterior motives, but only because he wishes to do the will of his Creator come what may. This is the world of action and not the world of Reward. We serve God because we are supposed to and not for any benefit. We need to humble ourselves and acknowledge whatever comes on us, good or bad.