'Weeks' in the Bible

And thou shalt observe the feast of weeks, of the first-fruits of wheat-harvest, And the feast of ingathering at the turn of the year.

And if she bear a female, then she shall be unclean two weeks, as in her separation; and she shall continue sixty-six days in the blood of her cleansing.

And ye shall count from the morning after the sabbath, from the day that ye brought the sheaf of the wave-offering, seven weeks; they shall be complete;

And on the day of the first-fruits, when ye present a new oblation to Jehovah, after your weeks, ye shall have a holy convocation: no manner of servile work shall ye do.

Seven weeks shalt thou count: from the beginning of putting the sickle into the corn shalt thou begin to count seven weeks.

And thou shalt hold the feast of weeks to Jehovah thy God with a tribute of a voluntary-offering of thy hand, which thou shalt give, according as Jehovah thy God hath blessed thee;

Three times in the year shall all thy males appear before Jehovah thy God in the place which he will choose, at the feast of unleavened bread, and at the feast of weeks, and at the feast of tabernacles; and they shall not appear before Jehovah empty:

even as the duty of every day required, offering according to the commandment of Moses, on the sabbaths, and on the new moons, and at the set feasts, three times in the year, at the feast of unleavened bread, and at the feast of weeks, and at the feast of tabernacles.

And they say not in their heart, Let us now fear Jehovah our God, that giveth rain, both the early and the latter, in its season; who preserveth unto us the appointed weeks of harvest.

Seventy weeks are apportioned out upon thy people and upon thy holy city, to close the transgression, and to make an end of sins, and to make expiation for iniquity, and to bring in the righteousness of the ages, and to seal the vision and prophet, and to anoint the holy of holies.

Know therefore and understand: From the going forth of the word to restore and to build Jerusalem unto Messiah, the Prince, are seven weeks, and sixty-two weeks. The street and the moat shall be built again, even in troublous times.

And after the sixty-two weeks shall Messiah be cut off, and shall have nothing; and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with an overflow, and unto the end, war, the desolations determined.

In those days I Daniel was mourning three full weeks:

I ate no pleasant bread, neither came flesh nor wine into my mouth, neither did I anoint myself at all, till three full weeks were fulfilled.