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)

2971. 'The field and the cave which was in it' means as regards the good and truth of faith. This is clear from the meaning of 'the field' as the Church and also good itself which constitutes the Church (that which is celestial - or good that stems from love to the Lord and charity towards the neighbour - is compared to 'the ground' as well as to the field, and is actually called these, because that which is celestial - or good - is the recipient of the truths of faith; and these truths are compared to and are also actually called 'seeds'); and from the meaning of 'a cave' as the truth of faith which is enveloped in obscurity, dealt with in 2935. It is said to be in obscurity because it is with spiritual people, see 1043, 2708, 2715.