Exodus 23:14-17

VIN(i) 14 "Three times a year you shall celebrate a festival for me. 15 You will keep the Feast of Unleavened Bread; for seven days you will eat unleavened bread, as I commanded you at the appointed time, the month of Abib, because in it you came out from Egypt, and no one will appear before me empty-handed. 16 Also the Feast of Harvest, the first fruits of your labor, of what you sow in the field. Also the Feast of Ingathering, at the end of the year, at your gathering your work from the field. 17 Three times in the year all your males shall appear before the Sovereign LORD.
Reformed Dating