Deuteronomy 16:1, 10, 13
Deuteronomy 16:10 NLT
Then celebrate the Festival of Harvest to honor the LORD your God. Bring him a voluntary offering in proportion to the blessings you have received from him.
Deuteronomy 16:13 NLT
“You must observe the Festival of Shelters for seven days at the end of the harvest season, after the grain has been threshed and the grapes have been pressed.