Exodus 23:14-19 - the 3 annual festivals
15. "Celebrate the Feast of Unleavened Bread; for seven days eat bread made without yeast, as I commanded you. Do this at the appointed time in the month of Abib, for in that month you came out of Egypt. "No one is to appear before me empty-handed.
16. "Celebrate the Feast of Harvest with the firstfruits of the crops you sow in your field. "Celebrate the Feast of Ingathering at the end of the year, when you gather in your crops from the field.
Deuteronomy 16
Verses 9-12 - Feast of weeks
Verses 13-17 - Feast of Tabernacles
16. Three times a year all your men must appear before the LORD your God at the place he will choose: at the Feast of Unleavened Bread, the Feast of Weeks and the Feast of Tabernacles. No man should appear before the LORD empty-handed:
1 Samuel 11 - Israel celebrates a new king
2 Chronicles 35 - Purim celebrated
Hosea 2 - Israelites embrace pagan celebrations
Acts 7 - the Israelites celebrated with a false god - golden calf
Esther:
Esther 8:15 - celebration in Susa
Esther 9:1-17 - triumph of the Jews
Esther 9:18-32 - Purim celebrated
Colossians 2 - New Moon celebration