Luke 19:44
44 And shall lay thee even with the ground, and thy children within thee; and they shall not leave in thee one stone upon another; because thou knewest not the time of thy visitation.
Referring to:
Dan 9:25
25 Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times.
26 And after threescore and two weeks shall Messiah be cut off, but not for himself: and the people of the prince that shall come shall destroy the city and the sanctuary;
7+62=69 weeks of years
69x7=483 years
Neh 2:1,5 & 6
1 And it came to pass in the month Nisan, in the twentieth year of Artaxerxes the king,...
5 ...that thou wouldest send me unto Judah, unto the city of my fathers’ sepulchres, that I may build it.
6 ...So it pleased the king to send me;
April 32AD, the date of Jesus' triumphal entry!
Here is a perfect passage that illustrates how the word week is used to mean seven years.
Gen 29:27
26 And Laban said, It must not be so done in our country, to give the younger before the firstborn.
27 Fulfil her week(H7620), and we will give thee this also for the service which thou shalt serve with me yet seven other years.
28 And Jacob did so, and fulfilled her week:(H7620) and he gave him Rachel his daughter to wife also.
The Hebrews are very oriented to using the word "weeks" or "sevens" to describe blocks of time.
1. Week of days or 7 days. (seventh day is the Sabbath)
Lev 23:3
3 Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.
2. Week of weeks or 49 days. (Feast of Weeks because they count seven sabbaths or Pentecost is celebrated the day after a week of weeks from the Feast of Passover).
Lev 23:15-16
15 And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete:
16 Even unto the morrow after the seventh sabbath shall ye number fifty days; and ye shall offer a new meat offering unto the LORD.
3. Week of months or 7 months. (Tishri is the seventh month or a week of months which is the celebration of the Feast of Trumpets or Rosh Hashanah)
Lev 23:23-24
23 And the LORD spake unto Moses, saying, 24 Speak unto the children of Israel, saying, In the seventh month, in the first day of the month, shall ye have a sabbath, a memorial of blowing of trumpets, an holy convocation.
4. Week of years or 7 years. (The seventh year is a Sabbath year for the land)
Lev 25:5-6
5 That which groweth of its own accord of thy harvest thou shalt not reap, neither gather the grapes of thy vine undressed: for it is a year of rest unto the land.
6 And the sabbath of the land shall be meat for you; for thee, and for thy servant, and for thy maid, and for thy hired servant, and for thy stranger that sojourneth with thee,
Obligatory Charts
H7620
shabuwa` {shaw-boo'-ah} or shabua` {shaw-boo'-ah} also (fem.) sh@bu`ah {sheb-oo-aw'}
Properly passive participle of H7650 as a denominative of H7651; literally sevened, that is, a week (specifically of years):—seven, week.
H7651
sheba` {sheh'-bah} or (masc.) shib`ah {shib-aw'}
From H7650; a primitive cardinal number; seven (as the sacred full one); also (adverbially) seven times; by implication a week; by extension an indefinite number:— (+ by) seven ([-fold], -s, [-teen, -teenth], -th, times). Compare H7658.
2 Chron 36:20-21
20 And them that had escaped from the sword carried he away to Babylon; where they were servants to him and his sons until the reign of the kingdom of Persia:
21 To fulfil the word of the LORD by the mouth of Jeremiah, until the land had enjoyed her sabbaths: for as long as she lay desolate she kept sabbath, to fulfil threescore and ten years.
Jer 25:11-12
11 And this whole land shall be a desolation, and an astonishment; and these nations shall serve the king of Babylon seventy years.
12 And it shall come to pass, when seventy years are accomplished, that I will punish the king of Babylon, and that nation, saith the LORD, for their iniquity, and the land of the Chaldeans, and will make it perpetual desolations.
Dan 9:2
2 In the first year of his reign I Daniel understood by books the number of the years, whereof the word of the LORD came to Jeremiah the prophet, that he would accomplish seventy years in the desolations of Jerusalem.
And regarding Jesus:
Dan 9:25-27
25 Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks(H7620), and threescore and two weeks(H7620): the street shall be built again, and the wall, even in troublous times.
26 And after threescore and two weeks shall Messiah be cut off, but not for himself: and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with a flood, and unto the end of the war desolations are determined.
27 And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make it desolate, even until the consummation, and that determined shall be poured upon the desolate.
Matt 24:15
15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)