Leviticus 23:9-14 New International Version (NIV)
Offering the Firstfruits
9 The Lord said to Moses, 10 “Speak to the Israelites and say to them: ‘When you enter the land I am going to give you and you reap its harvest, bring to the priest a sheaf of the first grain you harvest. 11 He is to wave the sheaf before the Lord so it will be accepted on your behalf; the priest is to wave it on the day after the Sabbath. 12 On the day you wave the sheaf, you must sacrifice as a burnt offering to the Lord a lamb a year old without defect, 13 together with its grain offering of two-tenths of an ephah of the finest flour mixed with olive oil—a food offering presented to the Lord, a pleasing aroma—and its drink offering of a quarter of a hin of wine. 14 You must not eat any bread, or roasted or new grain, until the very day you bring this offering to your God. This is to be a lasting ordinance for the generations to come, wherever you live.
The Festival of First Harvest required that the first crops harvested be offered to God. Before the Israelites could eat, they made this offering. Today, we are to set aside God’s portion first, not last. We receive 90% and God receives the first 10% of what we make. This is a heart check for us. Set aside your first 10% for God. Give him your first fruits and express your thanks for his provision in your life.