"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.
NIV
Also you shall keep the Feast of Harvest [Pentecost], [acknowledging] the firstfruits of your toil, of what you sow in the field. And [third] you shall keep the Feast of Ingathering [Booths or Tabernacles] at the end of the year, when you gather in the fruit of your labors from the field.
AMP
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.
KJV
"This is a day you are to commemorate; for the generations to come you shall celebrate it as a festival to the LORD – a lasting ordinance."
NIV
And this day shall be to you for a memorial. You shall keep it as a feast to the Lord throughout your generations, keep it as an ordinance forever.
AMP
And this day shall be unto you for a memorial; and ye shall keep it a feast to the LORD throughout your generations; ye shall keep it a feast by an ordinance for ever.
KJV
"So beginning with the fifteenth day of the seventh month, after you have gathered the crops of the land, celebrate the festival to the LORD for seven days; the first day is a day of sabbath rest, and the eighth day also is a day of sabbath rest."
NIV
Also on the fifteenth day of the seventh month [nearly October], when you have gathered in the fruit of the land, you shall keep the feast of the Lord for seven days, the first day and the eighth day each a Sabbath.
AMP
Also in the fifteenth day of the seventh month, when ye have gathered in the fruit of the land, ye shall keep a feast unto the LORD seven days: on the first day shall be a sabbath, and on the eighth day shall be a sabbath.
KJV
On the fifteenth day of that month the LORD's Festival of Unleavened Bread begins; for seven days you must eat bread made without yeast.
NIV
On the fifteenth day of the same month is the Feast of Unleavened Bread to the Lord; for seven days you shall eat unleavened bread. [I Cor. 5:7, 8.]AMP
And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD: seven days ye must eat unleavened bread.
KJV