Arcana Coelestia #2703
2703. 'And filled the flask with water' means truths from that source. This is clear from the meaning of 'water' as truth, dealt with just above.
Arcana Coelestia #2450
2450. 'And all the plain' means all the things which belonged to those truths. This is clear from the meaning of 'a plain' as everything that constitutes doctrinal teaching, and so everything that belongs to truths, dealt with in 2418.