After the sin of the Golden Calf, Moses assembled only the Israelites, ignoring the Erev Rav.
When there’s a time of goodwill, like when the people give Terumah to support the Holy, God brings the righteous in heavens together with the angels Michael, Gabriel, Uriel, Raphael, and all the camps of angels to come together and support the process of Terumah.
“וַיַּקְהֵל מֹשֶׁה, אֶת-כָּל-עֲדַת בְּנֵי יִשְׂרָאֵל–וַיֹּאמֶר אֲלֵהֶם: אֵלֶּה, הַדְּבָרִים, אֲשֶׁר-צִוָּה יְהוָה, לַעֲשֹׂת אֹתָם.”
“Then Moses assembled all the congregation of the sons of Israel, and said to them: “These are the things that the LORD has commanded you to do:”
And then Moses asked them to willingly bring Terumah.”
The word Terumah תרומה is read as תרום ה, which means ‘Elevate the ה’. The H ה is the letter that represents Malchut and the lower Shechinah. The act of Terumah creates a process that elevates Malchut with the support of the Sefirot of Zeir Anpin that is the aspect of escorting the bride to unite with her husband. Malchut elevates to the levels of Binah and Chokmah.
The patriarchs connect us to the three columns and the angels that welcome the Shechinah above.
Giving to different charities is a very good act of kindness but in the absence of the Holy Temple the highest level of giving is to those who spread Light in the world. The Light manifests in everything that is good, including all kind of support to poor people and anyone in need. Money is a sharable form of our energy. The ability to earn it is a gift from God and it’s a sin to waste it. We should be wise and always remember that when we give to a proper channel of Light, we reveal great Light in our lives. It’s manifested in what is good for us.