Leviticus 23 establishes the sacred occasions that structured Israel's religious calendar. Among these observances was the presentation of the firstfruits of the grain harvest. When the Israelites entered the land promised to them, they were instructed to bring the first sheaf of the harvest to the priest.
The priest presented the offering before the Lord, acknowledging that the harvest and its blessings came from God. The firstfruits represented the beginning of the harvest and expressed gratitude for the abundance that would follow. The observance also reminded Israel that the produce of the land belonged ultimately to God.