Three times thou shalt keep a feast unto me in the year. Thou shalt keep the feast of unleavened bread: (thou shalt eat unleavened bread seven days, as I commanded thee, in the time appointed of the month Abib; for in it thou camest out from Egypt: and none shall appear before me empty. And the feast of harvest, the firstfruits of thy labours, which thou hast sown in the field: and the feast of ingathering, which is in the end of the year, when thou hast gathered in thy labours out of the field.
Exodus 23:14-16 (KJV)
Mark the statement “none shall appear before me empty”. The most important of all in this great celebration of Harvest Thanksgiving was this wonderful statement. We are summoned to the Presence of God. We have an appointment with the mighty God. We bring to Him our gifts, He brings to us His Presence. In His Presence there is fulness of joy.