Arcana Coelestia # 9761
9761. 'Their pillars three, and the bases of these, three' means the forms of good and the truths springing from them which provide complete support. This is clear from the meaning of 'pillars' as forms of good which provide support, as above in 9747, 9757; from the meaning of 'the bases' as truths springing from good which also provide support, also dealt with above, in 9748; and from the meaning of 'three' as what is complete, dealt with in 2788, 4495, 7715.
Arcana Coelestia # 9748
9748. 'And their bases twenty, [made] from bronze' means the truths springing from good which also provide complete support. This is clear from the meaning of 'bases' as truths of faith springing from good, dealt with in 9643; from the meaning of 'twenty' as what is complete, as immediately above in 9747; and from the meaning of 'bronze' as good, dealt with in 425, 1551.