Arcana Coelestia #3975
3975. For whom I have served thee. That this signifies from His own power, is evident from the signification of “serving,” as being labor and study (n. 3824, 3846), and which when predicated of the Lord, signifies His own power; for from His own power the Lord procured for Himself Divine goods and Divine truths, and made His Human Divine (see n. 1616, 1749, 1755, 1921, 2025, 2026, 2083, 2500, 2523, 2632, 2816, 3382).
Arcana Coelestia #881
881. That “seven” signifies what is holy, because charity is now treated of, is evident from the signification of “seven” (concerning which above, n. 395, 716. Moreover “seven” is inserted here for the coherence of all things historically, as “seven” and “seven days” in the natural sense add nothing but a certain holiness, which this second state has from the celestial, that is, from charity.