Kabbalah Mazmur 69:16: Sha'arei Orah

A person should understand and know, that from the earth to the firmament there is no empty space, but rather, it all is teaming with legions and multitudes. Of these, there are those who are pure, kind and compassionate. However, below them are many impure creatures who accuse and cause damage. They all exist hovering in the air and from the earth to the firmament there is no place empty of them. Rather, it all is filled with multitudes, good ones and bad ones, those who are for life and those who are for death.

The Lord-Adona”y-אדנ"י hinted about this when the Jewish people sinned in this matter, as the prophet declared,⁴⁴Jeremiah 2:13 “For My people have committed two evils. They have left Me – the source of living waters – to excavate many broken cisterns (Borot Borot Nishbarim-בארות בארת נשברים) for themselves that do not hold water.” That is, a well of trouble (Be’er Tzarah-באר צרה) has no solid ground, for its walls continuously crumble and its waters dissipate. Instead, it becomes filled with snakes and scorpions. David hinted at this when he said,⁴⁵Psalms 69:16 “Let not the well-Be’er-באר close its mouth over me.”