The term God, as applied in the Word, is grounded in ability, or potency, but the term Jehovah, is grounded in esse, or essence. Hence it is that the term God is used in speaking of truth, and the term Jehovah in speaking of good, for ability relates to truth, when esse relates to good, inasmuch as good has power by truth, for by truth, good produces whatever exists.

(References: Arcana Coelestia 3910)