3845. Fulfill this week. That this signifies a further succession of study, is evident from the signification of “fulfilling,” as here being to serve or fulfill by serving, thus study (see n. 3824); and from the signification of a “week,” as being a state and also an entire period (n. 728, 2044); in the present case therefore a subsequent state and period, consequently what is successive. In regard to the signification of a “week,” this is the same as with the signification of a “month” (n. 3814), namely, that when it is mentioned in the singular number, it signifies the end of a former and the beginning of a subsequent state, thus a new state, to “fulfill” which is to proceed from the beginning to the end. The reason why a “week,” like all times specifically, signifies a state and also a period, is that all states have also their periods, that is; their beginning, successive progress, and end; yet in the other life these are not perceived as times, but as states and their revolutions. It is here very evident what the ancients understood by a week, namely, in a proper sense, every period that was distinguished into seven, whether it was of days, or of years, or of ages; thus whether it was great or small. That here it is a period of seven years is manifest; and as with the ancients seven signified that which is holy (n. 84-87, 395, 433, 716, 881), a “week” signified a holy period, and also the holiness of a period.

394. Now as this was foreseen, and was provided, lest the human race should perish in eternal death, it is here declared that none should do violence to Cain, by whom is signified faith separated from charity; and further that a mark was set upon him, which means that the Lord distinguished faith in a particular manner, in order to secure its preservation. These are arcana hitherto undiscovered, and are referred to by the Lord in what He said respecting marriage, and eunuchs, in Matthew:

There are eunuchs who were so born from their mother’s womb; and there are eunuchs who were made eunuchs of men; and there are eunuchs who have made themselves eunuchs for the kingdom of God’s sake; he that is able to receive it let him receive it (Matthew 19:12).

Those in the heavenly marriage are called “eunuchs;” those so “born from the womb” are such as resemble the celestial angels; those “made of men” are such as are like the spiritual angels; and those “made so by themselves” are like angelic spirits, who act not so much from charity as from obedience.