'Weeks' in the Bible

“You are to count seven weeks, counting the weeks from the time the sickle is first put to the standing grain.

You are to celebrate the Festival of Weeks to the Lord your God with a freewill offering that you give in proportion to how the Lord your God has blessed you.

“All your males are to appear three times a year before the Lord your God in the place He chooses: at the Festival of Unleavened Bread, the Festival of Weeks, and the Festival of Booths. No one is to appear before the Lord empty-handed.