In Deuteronomy 15:11, this signifies that truth requires good and good truth, and always will. (Arcana Coelestia 5365)

In Psalm 21:5, this signifies that the Lord will to eternity deliver those deprived of truths and good against their will. (The Inner Meaning of the Prophets and Psalms 271, Apocalypse Explained 95)

271. Internal Meaning of Psalm 21

Respecting the Lord: (10)

1-6 From His Divine He has all good and truth, thus honor and glory (10)

7-12 He will overthrow all who are against Him on the day of judgment. (8, 15, 3)

13 Those who are with Him will be glad because of His power. (15)