הָבִ֨יאוּ אֶת־כָּל־הַֽמַּעֲשֵׂ֜ר אֶל־בֵּ֣ית הָאוֹצָ֗ר וִיהִ֥י טֶ֙רֶף֙ בְּבֵיתִ֔י וּבְחָנ֤וּנִי נָא֙ בָּזֹ֔את אָמַ֖ר יְהוָ֣ה צְבָא֑וֹת אִם־לֹ֧א אֶפְתַּ֣ח לָכֶ֗ם אֵ֚ת אֲרֻבּ֣וֹת הַשָּׁמַ֔יִם וַהֲרִיקֹתִ֥י לָכֶ֛ם בְּרָכָ֖ה עַד־בְּלִי־דָֽי׃
你們要把全部的十分之一帶到倉庫裡，使我的殿中有糧食；你們可以藉此試試我，萬軍的永恆者說，看我會不會為你們打開天上的窗戶，把福分傾倒給你們，多到無處容納。
Tze'enah Ure'enah
“Bring the full tithe” [3:10]. Bring the tithes into My house so that My priests and levites should have enough food to do the service in the Temple. The Holy One said: test Me with tithes and giving charity, if I will not bless you with good rain. I will open My windows in heaven to bring blessings down to you, that you will say yourself that it is enough.
Tze'enah Ure'enah
The Talmud says in the first chapter of [tractate] Ta’anit. Rabbi Johanan found a child going home from his teacher and he said to the child. What did you study with your teacher? The child said: I studied, “you shall set aside a tenth” [Deuteronomy, 14:22]. The child said to Rabbi Johanan: what is the meaning of this verse? Rabbi Johanan said: give the tithe in the hope that you will become rich. The child said: can we test the Holy One? It is written, “Do not try the Lord, your God” [Deuteronomy, 6:16]. You should not test the Holy One. Rabbi Johanan responded: it is written here, “bring the full tithe into the house, etc.” [3:10]. God said, test me. I will give you enough money and grain so that you will not have enough vessels into which to put the grain.3B. Ta’anit, 9a.
Rashi
so that there may be nourishment in My House There shall be food accessible for My servants.