Deuteronomy 16:10-14 NIV

10 Then celebrate the Feast of Weeks to the LORD your God by giving a freewill offering in proportion to the blessings the LORD your God has given you.
11 And rejoice1 before the LORD your God at the place he will choose as a dwelling for his Name2--you, your sons and daughters, your menservants and maidservants, the Levites3 in your towns, and the aliens,4 the fatherless and the widows living among you.5

References for Deuteronomy 16:11

12 Remember that you were slaves in Egypt,6 and follow carefully these decrees.

References for Deuteronomy 16:12

Feast of Tabernacles

16:13-17pp -- Lev 23:33-43; Nu 29:12-39

13 Celebrate the Feast of Tabernacles for seven days after you have gathered the produce of your threshing floor7 and your winepress.8

References for Deuteronomy 16:13

14 Be joyful9 at your Feast--you, your sons and daughters, your menservants and maidservants, and the Levites, the aliens, the fatherless and the widows who live in your towns.

References for Deuteronomy 16:14