Exodus 23:16

16 “Celebrate the Festival of Harvest with the firstfruits of the crops you sow in your field. “Celebrate the Festival of Ingathering at the end of the year, when you gather in your crops from the field.

Read Exodus 23:16 Using Other Translations

And the feast of harvest, the firstfruits of thy labours, which thou hast sown in the field: and the feast of ingathering, which is in the end of the year, when thou hast gathered in thy labours out of the field.
You shall keep the Feast of Harvest, of the firstfruits of your labor, of what you sow in the field. You shall keep the Feast of Ingathering at the end of the year, when you gather in from the field the fruit of your labor.
“Second, celebrate the Festival of Harvest, when you bring me the first crops of your harvest. “Finally, celebrate the Festival of the Final Harvest at the end of the harvest season, when you have harvested all the crops from your fields.