Agla is in Magic, an acronym for Ate Gebir Leilam Adonai, which is Hebrew for “Thou art mighty forever, O Lord.” Agla also is used as the name of an Angel invoked in magic. Agla appears in numerous Charms and Amulets for invoking divine protective power against fever, misfortune, and evil.
The Lemegeton, a handbook of magic (see grimoires), refers to Agla as a “great and mighty” name of God. Arthur Edward Waite gave it great importance for divine protection that should be invoked in the making of magical tools for rituals. Agla is inscribed on swords and knives.