Arcana Coelestia #8808
8808. 'And he said to the people, Be ready by the third day' means full and complete preparation. This is clear from what has been stated above in 8790, where similar words occur.
Arcana Coelestia #8790
8790. 'And they will be ready by the third day' means [thus] full and complete preparation. This is clear from the meaning of 'being ready' as preparation through sanctification, dealt with just above; and from the meaning of 'the third day' as a state made complete, dealt with in 7715, thus full and complete preparation.