Arcana Coelestia # 8059
8059. 'And on the seventh day there shall be a feast to Jehovah' means holy worship of the Lord. This is clear from the meaning of 'the seventh day' as a holy state, state being meant by 'day', see 23, 487, 488, 493, 893, 2788, 3462, 3785, 4850, 5672, 5962, and what is holy by 'seven', 395, 433, 716, 881, 5265, 5268; and from the meaning of 'a feast to Jehovah' as worship of the Lord, worship with gladness of mind being meant by 'a feast', see 7093, and the Lord by 'Jehovah', 8046.
Arcana Coelestia # 881
881. 'Seven' means that which is holy because now charity is the subject. This is clear from the meaning of the number seven, dealt with already in 395, 716. Furthermore 'seven' has been brought in here so that all things may be linked together as though they were historical events, for in the internal sense 'seven' and 'seven days' contribute nothing more to the meaning than a certain holiness which this second state possesses from what is celestial, that is, from charity.