Arcana Coelestia # 23
23. Nothing is more common in the Word than for the word 'day' to be used to mean the particular time at which events take place, as in Isaiah,
The day of Jehovah is near. Behold, the day of Jehovah comes. I will make heaven tremble, and the earth will be shaken out of its place, on the day of My fierce anger. Its time is close at hand, and its days will not be prolonged. Isaiah 13:6, 9, 13, 22.
And in the same prophet,
Her antiquity is in the days of antiquity. On that day Tyre will be forgotten for seventy years, like the days of one king. Isaiah 23:7, 15.
Since 'day' stands for the particular time it also stands for the state associated with that particular time, as in Jeremiah, Woe to us, for the day has declined, for the shadows of evening have lengthened! Jeremiah 6:4
And in the same prophet,
If you break My covenant that is for the day and My covenant that is for the night, so that there is neither daytime nor night at their appointed time. Jeremiah 33:20, 25.
Also,
Renew our days as of old. Lamentations 5:21.
Arcana Coelestia # 2065
2065. That 'I will bless her' means the multiplication of truth is clear from the meaning of 'being blessed' as being enriched with everything good and true, dealt with in Volume One, in 981, 1096, 1420, 1422. Since here it is Sarah to whom the statement that God would bless her refers, the enrichment or multiplication of truth is meant, for, as shown already, 'Sarah' represents and means truth that is joined to good, which is intellectual truth. Such truth, and the multiplication of it, is the subject here. As to what intellectual truth is, see what has been said already in 1904.