Leviticus 23:8, 12, 36
Leviticus 23:8 ESV
But you shall present a food offering to the LORD for seven days. On the seventh day is a holy convocation; you shall not do any ordinary work.”
Leviticus 23:12 ESV
And on the day when you wave the sheaf, you shall offer a male lamb a year old without blemish as a burnt offering to the LORD.