Leviticus 23:38
Beside the sabbaths of the LORD, and beside your gifts, and beside all your vows, and beside all your freewill offerings, which ye give unto the LORD. Beside the sabbaths of the LORD, and beside your gifts, and beside all your vows, and beside all your freewill offerings, which ye give unto the LORD.
This text belongs to God's directions for Israel's appointed annual gatherings, specifically the instructions for the Feast of Tabernacles. It shows that the feast and its offerings were observed in addition to the regular Sabbaths of the Lord and the people's gifts, vows, and freewill offerings. People came to Jerusalem bearing gifts as thanksgiving to God for His goodness and blessings.
The feast was the closing gathering of the year, kept yearly in the seventh month from the fifteenth to the twenty-second day, lasting seven days or a week at Jerusalem. It was an occasion for Israel to gather at Jerusalem and rejoice after the harvest, when the year's labor was finished and the next year's work had not yet begun. Its rejoicing followed the Day of Atonement when the people were declared at peace with Heaven.
It was kept by dwelling for the week in booths made of branches and green boughs, with great gladness, sacred song and thanksgiving, and daily reading from the book of God's law. The feast was both a harvest thanksgiving for the abundance of orchard and field and a memorial of God's protection of Israel in the wilderness and their tent life. It was a time to reflect on and remember His goodness, mercy, and continuing care, including the harvest He had provided.
It included offerings from orchard and field, generous hospitality to Levites, strangers, and the poor, social gatherings and fellowship, and opportunities for families for outdoor recreation and social life. It was set apart from ordinary care and labor for learning about God and fellowship with Him and for fostering gratitude for the year's abundance. These annual assemblies were intended to keep God in the people's minds, and their observance stopped during the captivity and resumed when the people returned to their land.