1st Month: The Month of Abib
Numbers 10:10 - Also in the day of your gladness, and in your solemn days, and in the beginnings of your months, ye shall blow with the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; that they may be to you for a memorial before your Elohim: I am YHVH your Elohim.
Passover
Lev. 23:5 - In the fourteenth day of the first month at even is YHVH's passover.
Deut.16:1 - Observe the month of Abib, and keep the passover unto YHVH thy Elohim: for in the month of Abib YHVH thy Elohim brought thee forth out of Egypt by night.
Feast of Firstfruits
Lev. 23:9-14 - And YHVH spake unto Moses, saying, Speak unto the children of Israel, and say unto them, When ye be come into the land which I give unto you, and shall reap the harvest thereof, then ye shall bring a sheaf of the firstfruits of your harvest unto the priest: And he shall wave the sheaf before YHVH, to be accepted for you: on the morrow after the Sabbath the priest shall wave it. And ye shall offer that day when ye wave the sheaf an he lamb without blemish of the first year for a burnt offering unto YHVH. And the meat offering thereof shall be two tenth deals of fine flour mingled with oil, an offering made by fire unto YHVH for a sweet savour: and the drink offering thereof shall be of wine, the fourth part of an hin. And ye shall eat neither bread, nor parched corn, nor green ears, until the selfsame day that ye have brought an offering unto your Elohim: it shall be a statute for ever throughout your generations in all your dwellings.
Feast of Unleavened Bread
Exodus 12:17 - And ye shall observe the feast of unleavened bread; for in this selfsame day have I brought your armies out of the land of Egypt: therefore shall ye observe this day in your generations by an ordinance for ever. In the first month, on the fourteenth day of the month at even, ye shall eat unleavened bread, until the one and twentieth day of the month at even. Seven days shall there be no leaven found in your houses: for whosoever eateth that which is leavened, even that soul shall be cut off from the congregation of Israel, whether he be a stranger, or born in the land. Ye shall eat nothing leavened; in all your habitations shall ye eat unleavened bread.
3rd Month: The month of Sivan
Shavuot (Feast of Weeks/Pentecost)
Lev. 23:15,16,21 - And ye shall count unto you from the morrow after the Sabbath, from the day that ye brought the sheaf of the wave offering; seven Sabbaths shall be complete: Even unto the morrow after the seventh Sabbath shall ye number fifty days; And ye shall proclaim on the selfsame day, that it may be an holy convocation unto you: ye shall do no servile work therein: it shall be a statute for ever in all your dwellings throughout your generations.
Deut. 16:9-12 - Seven weeks shalt thou number unto thee: begin to number the seven weeks from such time as thou beginnest to put the sickle to the corn. And thou shalt keep the feast of weeks unto YHWH thy Elohim with a tribute of a freewill offering of thine hand, which thou shalt give unto YHWH thy Elohim, according as YHWH thy Elohim hath blessed thee: And thou shalt rejoice before YHWH thy Elohim, 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 YHWH thy Elohim 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.
7th Month: The Month of Ethanim
Feast of Trumpets
Lev. 23:23-25 - And YHWH spake unto Moses, saying, Speak unto the children of Israel, saying, In the seventh month, in the first day of the month, shall ye have a Sabbath, a memorial of blowing of trumpets, an holy convocation. Ye shall do no servile work therein:
Yom Kippur (Day of Atonement)
Lev. 23:26-32 - And YHWH spake unto Moses, saying, Also on the tenth day of this seventh month there shall be a day of atonement: it shall be an holy convocation unto you; and ye shall afflict your souls, and offer an offering made by fire unto YHWH. And ye shall do no work in that same day: for it is a day of atonement, to make an atonement for you before YHWH your Elohim. For whatsoever soul it be that shall not be afflicted in that same day, he shall be cut off from among his people. And whatsoever soul it be that doeth any work in that same day, the same soul will I destroy from among his people. Ye shall do no manner of work: it shall be a statute for ever throughout your generations in all your dwellings. It shall be unto you a Sabbath of rest, and ye shall afflict your souls: in the ninth day of the month at even, from even unto even, shall ye celebrate your Sabbath.
Feast of Tabernacle
Lev. 23:34-36 - Speak unto the children of Israel, saying, The fifteenth day of this seventh month shall be the feast of tabernacles for seven days unto YHWH. On the first day shall be an holy convocation: ye shall do no servile work therein. Seven days ye shall offer an offering made by fire unto YHWH: on the eighth day shall be an holy convocation unto you; and ye shall offer an offering made by fire unto YHWH: it is a solemn assembly; and ye shall do no servile work therein.