Arcana Coelestia # 6540
6540. 'And he made a mourning for his father seven days' means the end of the grief. This is clear from the meaning of 'mourning' as the grief that is felt before cognitions of good and truth have been implanted, dealt with immediately above in 6539; and from the meaning of 'seven days' as an entire period from beginning to end, dealt with in 728, 1044, 3845, 6508, here therefore the end, because once that period of days had passed they crossed the Jordan.
Daniel 4:25
25
that you shall be driven from men, and your dwelling shall be with the animals of the field, and you shall be made to eat grass as oxen, and shall be wet with the dew of the sky, and seven times shall pass over you; until you know that the Most High rules in the kingdom of men, and gives it to whomever he will.