Sheba שבע in Aramaic means seven. Sheba is addressing the kingdom, the Sephirah Malkuth (“kingdom”)
Sheba
Sheba שבע – Seven
Sheba-Shamayim
Sheba-Shamayim שבשמים
The Seven Heavens, Malkuth the Seventh Sepheroth, or Binah, the seventh Heaven; all of them together are שבתות Shabbatoth. This is how in Kabbalah we understand שבשמים Sheba-Shamayim in synthesis.
Shekinah
Also spelled Shechinah, Shekhinah, Shekina, Shechina, Schechinah, etc. (Hebrew שכינה) Literally means “dwelling place.” A feminine noun. In Kabbalah, the שכינה is the feminine aspect of God (the Divine Mother) that inhabits the temple when Israel is in harmony with God.
“…the word ‘בהבראם Be’Hei-baram’ signifies that the heavens and the earth were created by the Shekinah, of which the letter Hei is the symbol…” – Zohar
Shechinah is the feminine Divine force of God. She is the Divine Mother whose essence, feminine force or creative force is in exile (not active in us). She is the creative force of God that abides in the Chakra Muladhara. The Divine Mother Kundalini is the erotic, sensual chaste loving force underlying within the Church of Ephesus, whose veil covers the mystery of Daath. She is the fiery power within every Elohim.
The exile of the Shechinah means the exile from the chaste powers of the Kundalini by means of fornication and the falling into Klipoth through the Kundabuffer.