'Weeks' in the Bible

"You are to observe the Festival of Weeks, the first fruits of the wheat harvest, and the Festival of Tabernacles at the turn of the year.

"If she gives birth to a female, then she is to remain unclean for two weeks, just like her menstruation. She is to remain in purification for 66 days due to her blood loss.

"Starting the day after the Sabbath, count for yourselves seven weeks from the day you brought the sheaf of the wave offering. They are to be complete.

"Count for yourselves seven years of Sabbaths seven times seven years. This set of seven weeks of years total 49 years for you.

"On the first day of your harvest season, you are to hold a sacred assembly when you present your first fruits during the Festival of Weeks. No servile work is to be done.

"Count off seven weeks from when the sickle is first put to standing grain.

Then observe the Festival of Weeks in the presence of the LORD your God by giving your tribute and the freewill offering of your hands in proportion to the manner in which the LORD your God blessed you.

"Every male must appear in the presence of the LORD your God three times a year at the place where he will choose: for the Festival of Unleavened Bread, the Festival of Seven Weeks, and the Festival of Tents. He must not appear in the LORD's presence empty-handed,

acting in compliance with the daily rule by offering them in conformity to commands issued by Moses for the Sabbaths, the New Moons, the three annual festivals (the Festival of Unleavened Bread, the Festival of Weeks, and the Festival of Tents).

They don't say to themselves, "Let's fear the LORD our God, who gives rain in its season, both the autumn and the spring rain. He sets aside for us the weeks appointed for the harvest.'

Seventy weeks have been decreed concerning your people and your holy city: to restrain transgression, to put an end to sin, to make atonement for lawlessness, to establish everlasting righteousness, to conclude vision and prophecy, and to anoint the Most Holy Place.

So be informed and discern that seven weeks and 62 weeks will elapse from the issuance of the command to restore and rebuild Jerusalem until the Anointed Commander. The plaza and moat will be rebuilt, though in troubled times.

Then after the 62 weeks, the anointed one will be cut down (but not for himself). Then the people of the Coming Commander will destroy both the city and the Sanctuary. Its ending will come like a flood, and until the end there will be war, with desolations having been decreed.

"At that time I, Daniel, had been mourning for three straight weeks.

I ate no fancy foods neither meat nor wine entered my mouth. Furthermore, I didn't use any ointment until the end of the entire three weeks.