Exodus 34:22

And the feast of harvest, the firstfruits of thy labors, 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 labors out of the field.

And in the fourteenth day of the first month is the passover of the LORD. And in the fifteenth day of this month is the feast: seven days shall unleavened bread be eaten. In the first day shall be an holy convocation; ye shall do no manner of servile work therein: But ye shall offer a sacrifice made by fire for a burnt offering unto the LORD; two young bullocks, and one ram, and seven lambs of the first year: they shall be unto you without blemish: And their meat offering shall be of flour mingled with oil: three tenth deals shall ye offer for a bullock, and two tenth deals for a ram; A several tenth deal shalt thou offer for every lamb, throughout the seven lambs: And one goat for a sin offering, to make an atonement for you. Ye shall offer these beside the burnt offering in the morning, which is for a continual burnt offering. After this manner ye shall offer daily, throughout the seven days, the meat of the sacrifice made by fire, of a sweet savor unto the LORD: it shall be offered beside the continual burnt offering, and his drink offering. And on the seventh day ye shall have an holy convocation; ye shall do no servile work. Also in the day of the firstfruits, when ye bring a new meat offering unto the LORD, after your weeks be out, ye shall have an holy convocation; ye shall do no servile work: But ye shall offer the burnt offering for a sweet savor unto the LORD; two young bullocks, one ram, seven lambs of the first year; And their meat offering of flour mingled with oil, three tenth deals unto one bullock, two tenth deals unto one ram, A several tenth deal unto one lamb, throughout the seven lambs; And one kid of the goats, to make an atonement for you. Ye shall offer them beside the continual burnt offering, and his meat offering, (they shall be unto you without blemish) and their drink offerings.

And on the fifteenth day of the seventh month ye shall have an holy convocation; ye shall do no servile work, and ye shall keep a feast unto the LORD seven days: And ye shall offer a burnt offering, a sacrifice made by fire, of a sweet savor unto the LORD; thirteen young bullocks, two rams, and fourteen lambs of the first year; they shall be without blemish: And their meat offering shall be of flour mingled with oil, three tenth deals unto every bullock of the thirteen bullocks, two tenth deals to each ram of the two rams, And a several tenth deal to each lamb of the fourteen lambs: And one kid of the goats for a sin offering; beside the continual burnt offering, his meat offering, and his drink offering. And on the second day ye shall offer twelve young bullocks, two rams, fourteen lambs of the first year without spot: And their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one kid of the goats for a sin offering; beside the continual burnt offering, and the meat offering thereof, and their drink offerings. And on the third day eleven bullocks, two rams, fourteen lambs of the first year without blemish; And their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one goat for a sin offering; beside the continual burnt offering, and his meat offering, and his drink offering. And on the fourth day ten bullocks, two rams, and fourteen lambs of the first year without blemish: Their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one kid of the goats for a sin offering; beside the continual burnt offering, his meat offering, and his drink offering. And on the fifth day nine bullocks, two rams, and fourteen lambs of the first year without spot: And their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one goat for a sin offering; beside the continual burnt offering, and his meat offering, and his drink offering. And on the sixth day eight bullocks, two rams, and fourteen lambs of the first year without blemish: And their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one goat for a sin offering; beside the continual burnt offering, his meat offering, and his drink offering. And on the seventh day seven bullocks, two rams, and fourteen lambs of the first year without blemish: And their meat offering and their drink offerings for the bullocks, for the rams, and for the lambs, shall be according to their number, after the manner: And one goat for a sin offering; beside the continual burnt offering, his meat offering, and his drink offering. On the eighth day ye shall have a solemn assembly: ye shall do no servile work therein: But ye shall offer a burnt offering, a sacrifice made by fire, of a sweet savor unto the LORD: one bullock, one ram, seven lambs of the first year without blemish: Their meat offering and their drink offerings for the bullock, for the ram, and for the lambs, shall be according to their number, after the manner: And one goat for a sin offering; beside the continual burnt offering, and his meat offering, and his drink offering. These things ye shall do unto the LORD in your set feasts, beside your vows, and your freewill offerings, for your burnt offerings, and for your meat offerings, and for your drink offerings, and for your peace offerings.

And thou shalt keep the feast of weeks unto the LORD thy God with a tribute of a freewill offering of thine hand, which thou shalt give unto the LORD thy God, according as the LORD thy God hath blessed thee: And thou shalt rejoice before the LORD thy God, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite that is within thy gates, and the stranger, and the fatherless, and the widow, that are among you, in the place which the LORD thy God hath chosen to place his name there. And thou shalt remember that thou wast a bondman in Egypt: and thou shalt observe and do these statutes. Thou shalt observe the feast of tabernacles seven days, after that thou hast gathered in thy corn and thy wine: And thou shalt rejoice in thy feast, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite, the stranger, and the fatherless, and the widow, that are within thy gates. Seven days shalt thou keep a solemn feast unto the LORD thy God in the place which the LORD shall choose: because the LORD thy God shall bless thee in all thine increase, and in all the works of thine hands, therefore thou shalt surely rejoice.

Now the Jew's feast of tabernacles was at hand.

And when the day of Pentecost was fully come, they were all with one accord in one place.