'Weeks' in the Bible
And you are to keep the feast of weeks when you get in the first-fruits of the grain, and the feast at the turn of the year when you take in the produce of your fields.
But if she gives birth to a female child, then she will be unclean for two weeks, as when she is unwell; and she will not be completely clean for sixty-six days.
And let seven full weeks be numbered from the day after the Sabbath, the day when you give the grain for the wave offering;
And at the time of the first-fruits, when you give an offering of new meal to the Lord at your feast of weeks, there is to be a holy meeting: you may do no field-work:
Let seven weeks be numbered from the first day when the grain is cut.
Then keep the feast of weeks to the Lord your God, with an offering freely given to him from the wealth he has given you:
Three times in the year let all your males come before the Lord your God in the place named by him; at the feast of unleavened bread, the feast of weeks, and the feast of tents: and they are not to come before the Lord with nothing in their hands;
So Solomon and all Israel with him, a very great meeting, (for the people had come together from the way into Hamath to the river of Egypt,) kept the feast at that time before the Lord our God, for two weeks, even fourteen days.
Offering every day what had been ordered by Moses, on the Sabbaths and at the new moon and at the regular feasts three times a year, that is at the feast of unleavened bread, the feast of weeks, and the feast of tents.
And they do not say in their hearts, Now let us give worship to our God, who gives the rain, the winter and the spring rain, at the right time; who keeps for us the ordered weeks of the grain-cutting.
Seventy weeks have been fixed for your people and your holy town, to let wrongdoing be complete and sin come to its full limit, and for the clearing away of evil-doing and the coming in of eternal righteousness: so that the vision and the word of the prophet may be stamped as true, and to put the holy oil on a most holy place.
Have then the certain knowledge that from the going out of the word for the building again of Jerusalem till the coming of a prince, on whom the holy oil has been put, will be seven weeks: in sixty-two weeks its building will be complete, with square and earthwork.
And at the end of the times, even after the sixty-two weeks, one on whom the holy oil has been put will be cut off and have no ...; and the town and the holy place will be made waste together with a prince; and the end will come with an overflowing of waters, and even to the end there will be war; the making waste which has been fixed.
In those days I, Daniel, gave myself up to grief for three full weeks.
I had no pleasing food, no meat or wine came into my mouth, and I put no oil on my body till three full weeks were ended.