Among the Torah benefits of bitachon is that the money of the person who trusts in G‑d will not disturb him from trusting in Him, and neither his wealth nor lack of it is cause for him to sin.

וּמֵהֶן כִּי הַבּוֹטֵחַ בַּה' לֹא יִמְנָעֶנּוּ רֹב הַמָּמוֹן מִבְּטֹחַ בַּה',

This is because he will not rely on his money; rather, he considers it as a deposit, which he has been instructed to use in certain ways and for certain purposes for a designated amount of time.

מִפְּנֵי שֶׁאֵינֶנּוּ סוֹמֵךְ עַל הַמָּמוֹן, וְהוּא בְּעֵינָיו כְּפִקָּדוֹן צֻוָּה לְהִשְׁתַּמֵּשׁ בּוֹ עַל פָּנִים מְיֻחָדִים וּבְעִנְיָנִים מְיֻחָדִים לִזְמַן קָצוּב.

Designated amount of time. G‑d granted him greater financial means for the duration of time that He saw fit that he be His agent to dispense His money (Tov Halevanon).

If his wealth continues to remain with him, he will not rebel as a result of it, nor will he remind the one whom he has been instructed to be kind to of his kindness, nor will he ask to be repaid for his kindness, nor will he ask to be thanked or praised. Instead, he will thank his Creator, may He be blessed, Who put him in the position to be the means for the goodness of the recipient.

וְאִם יַתְמִיד קִיּוּמוֹ אֶצְלוֹ לֹא יִבְעַט בַּעֲבוּרוֹ, וְלֹא יַזְכִּיר טוֹבָתוֹ לְמִי שֶׁצֻּוָּה לָתֵת לוֹ מִמֶּנּוּ, וְלֹא יְבַקֵּשׁ עָלָיו גְּמוּל הוֹדָאָה וְשֶׁבַח, אֲבָל הוּא מוֹדֶה לְבוֹרְאוֹ יִתְבָּרֵךְ אֲשֶׁר שָׂמָהוּ סִבָּה לַטּוֹבוֹת.

A person who trusts in G‑d does not consider his money to be his; rather, he sees it as G‑d’s money, which has been placed in his care. Therefore, he will not take credit or ask for appreciation when he uses his money to help others. Instead, he will thank G‑d for being chosen to have the opportunity to help those in need.

Even if he loses his money, he will not worry, nor will he mourn its loss. Instead, he will thank G‑d for taking the deposit away from him, just as he thanked him when it was given to him in the first place.

וְאִם יֹאבַד הַמָּמוֹן מִמֶּנּוּ לֹא יִדְאַג וְלֹא יֶאֱבַל לְחֶסְרוֹנוֹ, אַךְ הוּא מוֹדֶה לֵאלֹהָיו בְּקַחְתּוֹ פִּקְדוֹנוֹ מֵאִתּוֹ כַּאֲשֶׁר הוֹדָה בִּנְתִינָתוֹ לוֹ,

If he loses his money, etc. G‑d tests man in two ways—the test of poverty and the test of wealth. King Solomon asks of G‑d to be tested with neither: Give me neither poverty nor riches, just feed me my allotted bread. For, perhaps, I will be overly satiated and deny you, saying, “Who is G‑d?” Or I may become poor and steal, and swear in the name of my G‑d (Proverbs 30:8-9).

Nevertheless, if we were to be tested, the test of wealth would be obviously easier and more rewarding. Therefore, we must ask for (the test of) wealth and use it properly. This explains why King Solomon first asks that he not be tested with poverty, because if a man needs to be tested, his first request is that it not be the test of poverty, which is more difficult and causes more pain and stress. As our Sages teach, “Poverty makes a man lose his mind and rebel against the will of G‑d” (see Eiruvin 41b; Torat Menachem, vol. 21, p. 275; vol. 23, p. 206).

Bottom line
Nothing that belongs to you is in someone else’s hands.

He will rejoice with his portion, will not seek that others be financially harmed, and will not be desirous of other people’s money. As the wise man, King Solomon, said (Proverbs 13:25): A righteous man eats to sate his appetite.

וְיִשְׂמַח בְּחֶלְקוֹ וְאֵינֶנּוּ מְבַקֵּשׁ הֶזֵּק זוּלָתוֹ, וְלֹא יַחְמֹד אָדָם בְּמָמוֹנוֹ, כְּמוֹ שֶׁאָמַר הֶחָכָם (משלי יג, כה) "צַדִּיק אוֹכֵל לְשֹׂבַע נַפְשׁוֹ."

The verse does not state that a righteous man eats until his stomach is satisfied, because he is satisfied with whatever he has. This verse is cited as proof that the righteous person is happy with his lot and is never desirous of other people’s money.