An Abbreviated List of Biblical Sevens

I have not included every instance of a collection of seven. I lumped multiple instances of the same collection together, such as various commands concerning Unleavened Bread or Sukkot. I also ignored historical statements that didn't seem to put any special emphasis on "7", such as "in the seventh year of the reign of so-and-so." Feel free to let me know if I missed any.

• 7 daughters of Jethro
• 7 days of Creation
• 7 clean animals on Noah’s Ark
• 7 congregations of Revelation
• 7 women of Isaiah
• 7 spirits of God
• 7 lamps of the Menorah
• 7 days of Unleavened Bread
• 7 days of Sukkot
• 7 days of Miriam’s shame
• 7 days of uncleanness for women and lepers
• 7 sprinkles from the red heifer
• 7 animals offered at various times
• 7 weeks of Shavuot
• 7th month, 1st day is Yom Teruah
• 7th year release
• 7th day Sabbath
• 7 years of oppression under Midian
• 7 years of rule by Ibzan
• 7 months with the Ark in Philistia
• 7 trumpeters with the Ark
• 7-fold light of the sun (Isa 30:26)
• 7 children of one mother (Jer 15:9) 
• 7 years burning weapons (Eze 39:9)
• 7 months burying the dead (Eze 39:12)
• 7 steps and cubits of Ezekiel’s Temple
• 7 weeks of Daniel
• 7 shepherds of Micah (Mic 5:5)
• 7 eyes of God (Zec 4:10)
• 7th day sin offerings (Eze 45:20)
• 7 husbands of the Sadducean widow.