Verses 14-19:
Private devotions are commendable for God’s child in any age. But God also wants public worship, Heb 10:24, 25. He appointed three major public gatherings for Israel:
1. The Feast of Unleavened Bread. This festival began with the Passover, and continued for seven days following. There was a "holy convocation" on the first and the last days of this week, Le 23:5-8. It was in the month Abib, April at the beginning of the barley harvest.
2. The Feast of Harvest, also called the "Feast of Weeks." Fifty days were numbered from the day the barley sheaf was offered. From this the name "Pentecost" arose. Most agree this was celebrated on the sixth day of Sivan, corresponding to the latter part of May. The main ceremony consisted of the offering of two leavened loaves of bread, made from the finest flour from the wheat just gathered. It lasted only one day, but it was a particularly joyous celebration.
3. The Feast of Ingathering, also named the "Feast of Tabernacles" Le 23:34; De 16:13; 31:10. The people lived in "booths" or "brush arbors" during the time of this festival. It began on the fifteenth day of Tisri, corresponding to the first part of October, and lasted seven or eight days. It came when the olive harvest was completed, and signified the completion of all Israel’s harvests.
The people were to assemble at the place God would later appoint, on these three occasions each year. This would be a unifying force within the nation, and a reminder of their relationship to Jehovah.
Custom held that the flesh of a kid (young goat) was more palatable if boiled in milk; and the mother’s milk would be the more readily available. The prohibition against seething (boiling) a kid in its mother’s milk has both a symbolic and practical application (1) It was in recognition of the tender relationship God has ordained between parent and child; and (2) medical science has learned that
meat and milk digest at a different pace; thus it is unhealthy to cook and eat the two together.